Home / 63,618.04-87,753.18-40,987

Finding the Fourth Proportional to 63,618.04, 87,753.18 and 40,987

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Solution

The fourth proportional to 63,618.04, 87,753.18 and 40,987 is: 56,536.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,618.04 : 87,753.18 = 40,987 : x
  2. Step 2: Convert to fraction form
    63,618.04/87,753.18 = 40,987/x
  3. Step 3: Cross multiply
    63,618.04x = 87,753.18 × 40,987
  4. Step 4: Simplify right side
    63,618.04x = 3,596,739,588.66
  5. Step 5: Solve for x
    x = 3,596,739,588.66/63,618.04
  6. Step 6: Final answer
    x = 56,536.47

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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.