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Finding the Fourth Proportional to 72,326.80, 108,403.80 and 37,248.40

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Solution

The fourth proportional to 72,326.80, 108,403.80 and 37,248.40 is: 55,828.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,326.80 : 108,403.80 = 37,248.40 : x
  2. Step 2: Convert to fraction form
    72,326.80/108,403.80 = 37,248.40/x
  3. Step 3: Cross multiply
    72,326.80x = 108,403.80 × 37,248.40
  4. Step 4: Simplify right side
    72,326.80x = 4,037,868,103.92
  5. Step 5: Solve for x
    x = 4,037,868,103.92/72,326.80
  6. Step 6: Final answer
    x = 55,828.10

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1.5x scale

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.