Home / 53,307.20-79,787.21-39,261.70

Finding the Fourth Proportional to 53,307.20, 79,787.21 and 39,261.70

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Solution

The fourth proportional to 53,307.20, 79,787.21 and 39,261.70 is: 58,764.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,307.20 : 79,787.21 = 39,261.70 : x
  2. Step 2: Convert to fraction form
    53,307.20/79,787.21 = 39,261.70/x
  3. Step 3: Cross multiply
    53,307.20x = 79,787.21 × 39,261.70
  4. Step 4: Simplify right side
    53,307.20x = 3,132,581,502.86
  5. Step 5: Solve for x
    x = 3,132,581,502.86/53,307.20
  6. Step 6: Final answer
    x = 58,764.70

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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.