Home / 98,031.12-135,275.04-55,593.60

Finding the Fourth Proportional to 98,031.12, 135,275.04 and 55,593.60

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Solution

The fourth proportional to 98,031.12, 135,275.04 and 55,593.60 is: 76,714.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,031.12 : 135,275.04 = 55,593.60 : x
  2. Step 2: Convert to fraction form
    98,031.12/135,275.04 = 55,593.60/x
  3. Step 3: Cross multiply
    98,031.12x = 135,275.04 × 55,593.60
  4. Step 4: Simplify right side
    98,031.12x = 7,520,426,463.74
  5. Step 5: Solve for x
    x = 7,520,426,463.74/98,031.12
  6. Step 6: Final answer
    x = 76,714.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.