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Finding the Fourth Proportional to 85,373.80, 128,053.02 and 29,966.44

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Solution

The fourth proportional to 85,373.80, 128,053.02 and 29,966.44 is: 44,946.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,373.80 : 128,053.02 = 29,966.44 : x
  2. Step 2: Convert to fraction form
    85,373.80/128,053.02 = 29,966.44/x
  3. Step 3: Cross multiply
    85,373.80x = 128,053.02 × 29,966.44
  4. Step 4: Simplify right side
    85,373.80x = 3,837,293,140.65
  5. Step 5: Solve for x
    x = 3,837,293,140.65/85,373.80
  6. Step 6: Final answer
    x = 44,946.96

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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.