Home / 86,711.10-130,064.82-39,963.96

Finding the Fourth Proportional to 86,711.10, 130,064.82 and 39,963.96

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Solution

The fourth proportional to 86,711.10, 130,064.82 and 39,963.96 is: 59,945.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,711.10 : 130,064.82 = 39,963.96 : x
  2. Step 2: Convert to fraction form
    86,711.10/130,064.82 = 39,963.96/x
  3. Step 3: Cross multiply
    86,711.10x = 130,064.82 × 39,963.96
  4. Step 4: Simplify right side
    86,711.10x = 5,197,905,263.89
  5. Step 5: Solve for x
    x = 5,197,905,263.89/86,711.10
  6. Step 6: Final answer
    x = 59,945.10

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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.