Home / 99,472.88-137,280.60-57,035.36

Finding the Fourth Proportional to 99,472.88, 137,280.60 and 57,035.36

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Solution

The fourth proportional to 99,472.88, 137,280.60 and 57,035.36 is: 78,713.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,472.88 : 137,280.60 = 57,035.36 : x
  2. Step 2: Convert to fraction form
    99,472.88/137,280.60 = 57,035.36/x
  3. Step 3: Cross multiply
    99,472.88x = 137,280.60 × 57,035.36
  4. Step 4: Simplify right side
    99,472.88x = 7,829,848,442.02
  5. Step 5: Solve for x
    x = 7,829,848,442.02/99,472.88
  6. Step 6: Final answer
    x = 78,713.40

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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.