Home / 66,496.32-99,743.40-31,461.12

Finding the Fourth Proportional to 66,496.32, 99,743.40 and 31,461.12

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Solution

The fourth proportional to 66,496.32, 99,743.40 and 31,461.12 is: 47,191.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,496.32 : 99,743.40 = 31,461.12 : x
  2. Step 2: Convert to fraction form
    66,496.32/99,743.40 = 31,461.12/x
  3. Step 3: Cross multiply
    66,496.32x = 99,743.40 × 31,461.12
  4. Step 4: Simplify right side
    66,496.32x = 3,138,039,076.61
  5. Step 5: Solve for x
    x = 3,138,039,076.61/66,496.32
  6. Step 6: Final answer
    x = 47,191.17

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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.