Home / 66,218.64-99,330.66-31,133.76

Finding the Fourth Proportional to 66,218.64, 99,330.66 and 31,133.76

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Solution

The fourth proportional to 66,218.64, 99,330.66 and 31,133.76 is: 46,701.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,218.64 : 99,330.66 = 31,133.76 : x
  2. Step 2: Convert to fraction form
    66,218.64/99,330.66 = 31,133.76/x
  3. Step 3: Cross multiply
    66,218.64x = 99,330.66 × 31,133.76
  4. Step 4: Simplify right side
    66,218.64x = 3,092,536,929.08
  5. Step 5: Solve for x
    x = 3,092,536,929.08/66,218.64
  6. Step 6: Final answer
    x = 46,701.91

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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.