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Finding the Fourth Proportional to 90,460.80, 124,804.80 and 52,747.20

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Solution

The fourth proportional to 90,460.80, 124,804.80 and 52,747.20 is: 72,773.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,460.80 : 124,804.80 = 52,747.20 : x
  2. Step 2: Convert to fraction form
    90,460.80/124,804.80 = 52,747.20/x
  3. Step 3: Cross multiply
    90,460.80x = 124,804.80 × 52,747.20
  4. Step 4: Simplify right side
    90,460.80x = 6,583,103,746.56
  5. Step 5: Solve for x
    x = 6,583,103,746.56/90,460.80
  6. Step 6: Final answer
    x = 72,773.00

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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.