Home / 66,140.10-91,272.02-37,459.29

Finding the Fourth Proportional to 66,140.10, 91,272.02 and 37,459.29

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Solution

The fourth proportional to 66,140.10, 91,272.02 and 37,459.29 is: 51,693.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,140.10 : 91,272.02 = 37,459.29 : x
  2. Step 2: Convert to fraction form
    66,140.10/91,272.02 = 37,459.29/x
  3. Step 3: Cross multiply
    66,140.10x = 91,272.02 × 37,459.29
  4. Step 4: Simplify right side
    66,140.10x = 3,418,985,066.07
  5. Step 5: Solve for x
    x = 3,418,985,066.07/66,140.10
  6. Step 6: Final answer
    x = 51,693.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.