Home / 86,703.20-129,957.60-36,774.80

Finding the Fourth Proportional to 86,703.20, 129,957.60 and 36,774.80

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Solution

The fourth proportional to 86,703.20, 129,957.60 and 36,774.80 is: 55,120.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,703.20 : 129,957.60 = 36,774.80 : x
  2. Step 2: Convert to fraction form
    86,703.20/129,957.60 = 36,774.80/x
  3. Step 3: Cross multiply
    86,703.20x = 129,957.60 × 36,774.80
  4. Step 4: Simplify right side
    86,703.20x = 4,779,164,748.48
  5. Step 5: Solve for x
    x = 4,779,164,748.48/86,703.20
  6. Step 6: Final answer
    x = 55,120.97

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1.5x scale

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.