Home / 86,187.60-129,281.40-59,615.55

Finding the Fourth Proportional to 86,187.60, 129,281.40 and 59,615.55

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Solution

The fourth proportional to 86,187.60, 129,281.40 and 59,615.55 is: 89,423.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,187.60 : 129,281.40 = 59,615.55 : x
  2. Step 2: Convert to fraction form
    86,187.60/129,281.40 = 59,615.55/x
  3. Step 3: Cross multiply
    86,187.60x = 129,281.40 × 59,615.55
  4. Step 4: Simplify right side
    86,187.60x = 7,707,181,765.77
  5. Step 5: Solve for x
    x = 7,707,181,765.77/86,187.60
  6. Step 6: Final answer
    x = 89,423.33

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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.