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Finding the Fourth Proportional to 99,295.57, 137,027.33 and 56,283.20

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Solution

The fourth proportional to 99,295.57, 137,027.33 and 56,283.20 is: 77,670.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,295.57 : 137,027.33 = 56,283.20 : x
  2. Step 2: Convert to fraction form
    99,295.57/137,027.33 = 56,283.20/x
  3. Step 3: Cross multiply
    99,295.57x = 137,027.33 × 56,283.20
  4. Step 4: Simplify right side
    99,295.57x = 7,712,336,180.96
  5. Step 5: Solve for x
    x = 7,712,336,180.96/99,295.57
  6. Step 6: Final answer
    x = 77,670.49

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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.