Home / 98,572.32-136,031.10-56,131.02

Finding the Fourth Proportional to 98,572.32, 136,031.10 and 56,131.02

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Solution

The fourth proportional to 98,572.32, 136,031.10 and 56,131.02 is: 77,461.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,572.32 : 136,031.10 = 56,131.02 : x
  2. Step 2: Convert to fraction form
    98,572.32/136,031.10 = 56,131.02/x
  3. Step 3: Cross multiply
    98,572.32x = 136,031.10 × 56,131.02
  4. Step 4: Simplify right side
    98,572.32x = 7,635,564,394.72
  5. Step 5: Solve for x
    x = 7,635,564,394.72/98,572.32
  6. Step 6: Final answer
    x = 77,461.55

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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.