Home / 86,628.48-129,956.28-36,708.88

Finding the Fourth Proportional to 86,628.48, 129,956.28 and 36,708.88

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Solution

The fourth proportional to 86,628.48, 129,956.28 and 36,708.88 is: 55,069.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,628.48 : 129,956.28 = 36,708.88 : x
  2. Step 2: Convert to fraction form
    86,628.48/129,956.28 = 36,708.88/x
  3. Step 3: Cross multiply
    86,628.48x = 129,956.28 × 36,708.88
  4. Step 4: Simplify right side
    86,628.48x = 4,770,549,487.77
  5. Step 5: Solve for x
    x = 4,770,549,487.77/86,628.48
  6. Step 6: Final answer
    x = 55,069.07

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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.