Home / 89,712.40-134,536.20-45,324.40

Finding the Fourth Proportional to 89,712.40, 134,536.20 and 45,324.40

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Solution

The fourth proportional to 89,712.40, 134,536.20 and 45,324.40 is: 67,970.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,712.40 : 134,536.20 = 45,324.40 : x
  2. Step 2: Convert to fraction form
    89,712.40/134,536.20 = 45,324.40/x
  3. Step 3: Cross multiply
    89,712.40x = 134,536.20 × 45,324.40
  4. Step 4: Simplify right side
    89,712.40x = 6,097,772,543.28
  5. Step 5: Solve for x
    x = 6,097,772,543.28/89,712.40
  6. Step 6: Final answer
    x = 67,970.23

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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.