Home / 61,080.17-91,639.38-18,387.29

Finding the Fourth Proportional to 61,080.17, 91,639.38 and 18,387.29

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Solution

The fourth proportional to 61,080.17, 91,639.38 and 18,387.29 is: 27,586.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,080.17 : 91,639.38 = 18,387.29 : x
  2. Step 2: Convert to fraction form
    61,080.17/91,639.38 = 18,387.29/x
  3. Step 3: Cross multiply
    61,080.17x = 91,639.38 × 18,387.29
  4. Step 4: Simplify right side
    61,080.17x = 1,684,999,397.28
  5. Step 5: Solve for x
    x = 1,684,999,397.28/61,080.17
  6. Step 6: Final answer
    x = 27,586.69

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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.