Home / 93,876.42-129,550.78-56,143.38

Finding the Fourth Proportional to 93,876.42, 129,550.78 and 56,143.38

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Solution

The fourth proportional to 93,876.42, 129,550.78 and 56,143.38 is: 77,478.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,876.42 : 129,550.78 = 56,143.38 : x
  2. Step 2: Convert to fraction form
    93,876.42/129,550.78 = 56,143.38/x
  3. Step 3: Cross multiply
    93,876.42x = 129,550.78 × 56,143.38
  4. Step 4: Simplify right side
    93,876.42x = 7,273,418,670.84
  5. Step 5: Solve for x
    x = 7,273,418,670.84/93,876.42
  6. Step 6: Final answer
    x = 77,478.65

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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.