Home / 86,118.20-118,828.75-47,876.68

Finding the Fourth Proportional to 86,118.20, 118,828.75 and 47,876.68

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Solution

The fourth proportional to 86,118.20, 118,828.75 and 47,876.68 is: 66,061.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,118.20 : 118,828.75 = 47,876.68 : x
  2. Step 2: Convert to fraction form
    86,118.20/118,828.75 = 47,876.68/x
  3. Step 3: Cross multiply
    86,118.20x = 118,828.75 × 47,876.68
  4. Step 4: Simplify right side
    86,118.20x = 5,689,126,038.55
  5. Step 5: Solve for x
    x = 5,689,126,038.55/86,118.20
  6. Step 6: Final answer
    x = 66,061.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.