Home / 87,076.29-120,130.74-56,851.95

Finding the Fourth Proportional to 87,076.29, 120,130.74 and 56,851.95

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Solution

The fourth proportional to 87,076.29, 120,130.74 and 56,851.95 is: 78,433.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,076.29 : 120,130.74 = 56,851.95 : x
  2. Step 2: Convert to fraction form
    87,076.29/120,130.74 = 56,851.95/x
  3. Step 3: Cross multiply
    87,076.29x = 120,130.74 × 56,851.95
  4. Step 4: Simplify right side
    87,076.29x = 6,829,666,823.94
  5. Step 5: Solve for x
    x = 6,829,666,823.94/87,076.29
  6. Step 6: Final answer
    x = 78,433.14

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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.