Home / 72,637.02-108,962.61-28,267.38

Finding the Fourth Proportional to 72,637.02, 108,962.61 and 28,267.38

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Solution

The fourth proportional to 72,637.02, 108,962.61 and 28,267.38 is: 42,403.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,637.02 : 108,962.61 = 28,267.38 : x
  2. Step 2: Convert to fraction form
    72,637.02/108,962.61 = 28,267.38/x
  3. Step 3: Cross multiply
    72,637.02x = 108,962.61 × 28,267.38
  4. Step 4: Simplify right side
    72,637.02x = 3,080,087,502.66
  5. Step 5: Solve for x
    x = 3,080,087,502.66/72,637.02
  6. Step 6: Final answer
    x = 42,403.83

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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.