Home / 86,418.04-129,510.40-44,894.20

Finding the Fourth Proportional to 86,418.04, 129,510.40 and 44,894.20

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Solution

The fourth proportional to 86,418.04, 129,510.40 and 44,894.20 is: 67,280.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,418.04 : 129,510.40 = 44,894.20 : x
  2. Step 2: Convert to fraction form
    86,418.04/129,510.40 = 44,894.20/x
  3. Step 3: Cross multiply
    86,418.04x = 129,510.40 × 44,894.20
  4. Step 4: Simplify right side
    86,418.04x = 5,814,265,799.68
  5. Step 5: Solve for x
    x = 5,814,265,799.68/86,418.04
  6. Step 6: Final answer
    x = 67,280.70

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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.