Home / 86,781.35-130,023.42-47,366.12

Finding the Fourth Proportional to 86,781.35, 130,023.42 and 47,366.12

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Solution

The fourth proportional to 86,781.35, 130,023.42 and 47,366.12 is: 70,968.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,781.35 : 130,023.42 = 47,366.12 : x
  2. Step 2: Convert to fraction form
    86,781.35/130,023.42 = 47,366.12/x
  3. Step 3: Cross multiply
    86,781.35x = 130,023.42 × 47,366.12
  4. Step 4: Simplify right side
    86,781.35x = 6,158,704,264.41
  5. Step 5: Solve for x
    x = 6,158,704,264.41/86,781.35
  6. Step 6: Final answer
    x = 70,968.07

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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.