Home / 71,519.61-98,686.10-42,832.55

Finding the Fourth Proportional to 71,519.61, 98,686.10 and 42,832.55

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Solution

The fourth proportional to 71,519.61, 98,686.10 and 42,832.55 is: 59,102.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,519.61 : 98,686.10 = 42,832.55 : x
  2. Step 2: Convert to fraction form
    71,519.61/98,686.10 = 42,832.55/x
  3. Step 3: Cross multiply
    71,519.61x = 98,686.10 × 42,832.55
  4. Step 4: Simplify right side
    71,519.61x = 4,226,977,666.35
  5. Step 5: Solve for x
    x = 4,226,977,666.35/71,519.61
  6. Step 6: Final answer
    x = 59,102.36

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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.