Home / 292,002.01-438,003.42-81,639.74

Finding the Fourth Proportional to 292,002.01, 438,003.42 and 81,639.74

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Solution

The fourth proportional to 292,002.01, 438,003.42 and 81,639.74 is: 122,459.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,002.01 : 438,003.42 = 81,639.74 : x
  2. Step 2: Convert to fraction form
    292,002.01/438,003.42 = 81,639.74/x
  3. Step 3: Cross multiply
    292,002.01x = 438,003.42 × 81,639.74
  4. Step 4: Simplify right side
    292,002.01x = 35,758,486,116.77
  5. Step 5: Solve for x
    x = 35,758,486,116.77/292,002.01
  6. Step 6: Final answer
    x = 122,459.73

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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.