Home / 93,753.78-129,379.45-51,312.21

Finding the Fourth Proportional to 93,753.78, 129,379.45 and 51,312.21

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Solution

The fourth proportional to 93,753.78, 129,379.45 and 51,312.21 is: 70,810.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,753.78 : 129,379.45 = 51,312.21 : x
  2. Step 2: Convert to fraction form
    93,753.78/129,379.45 = 51,312.21/x
  3. Step 3: Cross multiply
    93,753.78x = 129,379.45 × 51,312.21
  4. Step 4: Simplify right side
    93,753.78x = 6,638,745,508.08
  5. Step 5: Solve for x
    x = 6,638,745,508.08/93,753.78
  6. Step 6: Final answer
    x = 70,810.43

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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.