Home / 72,349.02-99,839.30-40,082.30

Finding the Fourth Proportional to 72,349.02, 99,839.30 and 40,082.30

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Solution

The fourth proportional to 72,349.02, 99,839.30 and 40,082.30 is: 55,312.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,349.02 : 99,839.30 = 40,082.30 : x
  2. Step 2: Convert to fraction form
    72,349.02/99,839.30 = 40,082.30/x
  3. Step 3: Cross multiply
    72,349.02x = 99,839.30 × 40,082.30
  4. Step 4: Simplify right side
    72,349.02x = 4,001,788,774.39
  5. Step 5: Solve for x
    x = 4,001,788,774.39/72,349.02
  6. Step 6: Final answer
    x = 55,312.27

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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.