Home / 85,737.34-128,606.02-35,790.18

Finding the Fourth Proportional to 85,737.34, 128,606.02 and 35,790.18

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Solution

The fourth proportional to 85,737.34, 128,606.02 and 35,790.18 is: 53,685.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,737.34 : 128,606.02 = 35,790.18 : x
  2. Step 2: Convert to fraction form
    85,737.34/128,606.02 = 35,790.18/x
  3. Step 3: Cross multiply
    85,737.34x = 128,606.02 × 35,790.18
  4. Step 4: Simplify right side
    85,737.34x = 4,602,832,604.88
  5. Step 5: Solve for x
    x = 4,602,832,604.88/85,737.34
  6. Step 6: Final answer
    x = 53,685.27

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.