Home / 99,551.36-149,345.45-28,470.98

Finding the Fourth Proportional to 99,551.36, 149,345.45 and 28,470.98

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Solution

The fourth proportional to 99,551.36, 149,345.45 and 28,470.98 is: 42,711.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,551.36 : 149,345.45 = 28,470.98 : x
  2. Step 2: Convert to fraction form
    99,551.36/149,345.45 = 28,470.98/x
  3. Step 3: Cross multiply
    99,551.36x = 149,345.45 × 28,470.98
  4. Step 4: Simplify right side
    99,551.36x = 4,252,011,320.04
  5. Step 5: Solve for x
    x = 4,252,011,320.04/99,551.36
  6. Step 6: Final answer
    x = 42,711.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.