Home / 74,007.10-110,686.65-66,166.30

Finding the Fourth Proportional to 74,007.10, 110,686.65 and 66,166.30

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Solution

The fourth proportional to 74,007.10, 110,686.65 and 66,166.30 is: 98,959.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,007.10 : 110,686.65 = 66,166.30 : x
  2. Step 2: Convert to fraction form
    74,007.10/110,686.65 = 66,166.30/x
  3. Step 3: Cross multiply
    74,007.10x = 110,686.65 × 66,166.30
  4. Step 4: Simplify right side
    74,007.10x = 7,323,726,089.90
  5. Step 5: Solve for x
    x = 7,323,726,089.90/74,007.10
  6. Step 6: Final answer
    x = 98,959.78

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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.