Home / 93,780.12-129,418.38-51,337.74

Finding the Fourth Proportional to 93,780.12, 129,418.38 and 51,337.74

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Solution

The fourth proportional to 93,780.12, 129,418.38 and 51,337.74 is: 70,847.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,780.12 : 129,418.38 = 51,337.74 : x
  2. Step 2: Convert to fraction form
    93,780.12/129,418.38 = 51,337.74/x
  3. Step 3: Cross multiply
    93,780.12x = 129,418.38 × 51,337.74
  4. Step 4: Simplify right side
    93,780.12x = 6,644,047,143.66
  5. Step 5: Solve for x
    x = 6,644,047,143.66/93,780.12
  6. Step 6: Final answer
    x = 70,847.07

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1.5x scale

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.