Home / 93,123.17-128,512.50-57,333.55

Finding the Fourth Proportional to 93,123.17, 128,512.50 and 57,333.55

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Solution

The fourth proportional to 93,123.17, 128,512.50 and 57,333.55 is: 79,121.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,123.17 : 128,512.50 = 57,333.55 : x
  2. Step 2: Convert to fraction form
    93,123.17/128,512.50 = 57,333.55/x
  3. Step 3: Cross multiply
    93,123.17x = 128,512.50 × 57,333.55
  4. Step 4: Simplify right side
    93,123.17x = 7,368,077,844.38
  5. Step 5: Solve for x
    x = 7,368,077,844.38/93,123.17
  6. Step 6: Final answer
    x = 79,121.85

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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.