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Finding the Fourth Proportional to 96,989.76, 133,840.98 and 54,545.76

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Solution

The fourth proportional to 96,989.76, 133,840.98 and 54,545.76 is: 75,270.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,989.76 : 133,840.98 = 54,545.76 : x
  2. Step 2: Convert to fraction form
    96,989.76/133,840.98 = 54,545.76/x
  3. Step 3: Cross multiply
    96,989.76x = 133,840.98 × 54,545.76
  4. Step 4: Simplify right side
    96,989.76x = 7,300,457,973.24
  5. Step 5: Solve for x
    x = 7,300,457,973.24/96,989.76
  6. Step 6: Final answer
    x = 75,270.40

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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.