Home / 72,521.56-108,681.10-39,169.76

Finding the Fourth Proportional to 72,521.56, 108,681.10 and 39,169.76

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Solution

The fourth proportional to 72,521.56, 108,681.10 and 39,169.76 is: 58,699.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,521.56 : 108,681.10 = 39,169.76 : x
  2. Step 2: Convert to fraction form
    72,521.56/108,681.10 = 39,169.76/x
  3. Step 3: Cross multiply
    72,521.56x = 108,681.10 × 39,169.76
  4. Step 4: Simplify right side
    72,521.56x = 4,257,012,603.54
  5. Step 5: Solve for x
    x = 4,257,012,603.54/72,521.56
  6. Step 6: Final answer
    x = 58,699.96

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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.