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Finding the Fourth Proportional to 99,477.95, 137,279.55 and 54,765.95

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Solution

The fourth proportional to 99,477.95, 137,279.55 and 54,765.95 is: 75,577.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,477.95 : 137,279.55 = 54,765.95 : x
  2. Step 2: Convert to fraction form
    99,477.95/137,279.55 = 54,765.95/x
  3. Step 3: Cross multiply
    99,477.95x = 137,279.55 × 54,765.95
  4. Step 4: Simplify right side
    99,477.95x = 7,518,244,284.92
  5. Step 5: Solve for x
    x = 7,518,244,284.92/99,477.95
  6. Step 6: Final answer
    x = 75,577.00

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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.