Home / 66,591.10-99,886.38-31,555.36

Finding the Fourth Proportional to 66,591.10, 99,886.38 and 31,555.36

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Solution

The fourth proportional to 66,591.10, 99,886.38 and 31,555.36 is: 47,332.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,591.10 : 99,886.38 = 31,555.36 : x
  2. Step 2: Convert to fraction form
    66,591.10/99,886.38 = 31,555.36/x
  3. Step 3: Cross multiply
    66,591.10x = 99,886.38 × 31,555.36
  4. Step 4: Simplify right side
    66,591.10x = 3,151,950,680.00
  5. Step 5: Solve for x
    x = 3,151,950,680.00/66,591.10
  6. Step 6: Final answer
    x = 47,332.91

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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.