Home / 66,421.02-91,663.35-37,740.27

Finding the Fourth Proportional to 66,421.02, 91,663.35 and 37,740.27

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Solution

The fourth proportional to 66,421.02, 91,663.35 and 37,740.27 is: 52,082.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,421.02 : 91,663.35 = 37,740.27 : x
  2. Step 2: Convert to fraction form
    66,421.02/91,663.35 = 37,740.27/x
  3. Step 3: Cross multiply
    66,421.02x = 91,663.35 × 37,740.27
  4. Step 4: Simplify right side
    66,421.02x = 3,459,399,578.10
  5. Step 5: Solve for x
    x = 3,459,399,578.10/66,421.02
  6. Step 6: Final answer
    x = 52,082.90

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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.