Home / 52,237.86-72,089.72-30,729.20

Finding the Fourth Proportional to 52,237.86, 72,089.72 and 30,729.20

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Solution

The fourth proportional to 52,237.86, 72,089.72 and 30,729.20 is: 42,407.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,237.86 : 72,089.72 = 30,729.20 : x
  2. Step 2: Convert to fraction form
    52,237.86/72,089.72 = 30,729.20/x
  3. Step 3: Cross multiply
    52,237.86x = 72,089.72 × 30,729.20
  4. Step 4: Simplify right side
    52,237.86x = 2,215,258,909.73
  5. Step 5: Solve for x
    x = 2,215,258,909.73/52,237.86
  6. Step 6: Final answer
    x = 42,407.15

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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.