Home / 86,854.20-130,193.59-41,809.40

Finding the Fourth Proportional to 86,854.20, 130,193.59 and 41,809.40

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Solution

The fourth proportional to 86,854.20, 130,193.59 and 41,809.40 is: 62,671.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,854.20 : 130,193.59 = 41,809.40 : x
  2. Step 2: Convert to fraction form
    86,854.20/130,193.59 = 41,809.40/x
  3. Step 3: Cross multiply
    86,854.20x = 130,193.59 × 41,809.40
  4. Step 4: Simplify right side
    86,854.20x = 5,443,316,300.92
  5. Step 5: Solve for x
    x = 5,443,316,300.92/86,854.20
  6. Step 6: Final answer
    x = 62,671.88

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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.