Home / 72,375.11-99,848.91-45,135.17

Finding the Fourth Proportional to 72,375.11, 99,848.91 and 45,135.17

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Solution

The fourth proportional to 72,375.11, 99,848.91 and 45,135.17 is: 62,268.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,375.11 : 99,848.91 = 45,135.17 : x
  2. Step 2: Convert to fraction form
    72,375.11/99,848.91 = 45,135.17/x
  3. Step 3: Cross multiply
    72,375.11x = 99,848.91 × 45,135.17
  4. Step 4: Simplify right side
    72,375.11x = 4,506,697,527.16
  5. Step 5: Solve for x
    x = 4,506,697,527.16/72,375.11
  6. Step 6: Final answer
    x = 62,268.61

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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.