Home / 85,444.50-128,168.76-29,284.16

Finding the Fourth Proportional to 85,444.50, 128,168.76 and 29,284.16

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Solution

The fourth proportional to 85,444.50, 128,168.76 and 29,284.16 is: 43,926.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,444.50 : 128,168.76 = 29,284.16 : x
  2. Step 2: Convert to fraction form
    85,444.50/128,168.76 = 29,284.16/x
  3. Step 3: Cross multiply
    85,444.50x = 128,168.76 × 29,284.16
  4. Step 4: Simplify right side
    85,444.50x = 3,753,314,057.20
  5. Step 5: Solve for x
    x = 3,753,314,057.20/85,444.50
  6. Step 6: Final answer
    x = 43,926.93

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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.