Home / 87,818.52-121,192.50-53,820.45

Finding the Fourth Proportional to 87,818.52, 121,192.50 and 53,820.45

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Solution

The fourth proportional to 87,818.52, 121,192.50 and 53,820.45 is: 74,274.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,818.52 : 121,192.50 = 53,820.45 : x
  2. Step 2: Convert to fraction form
    87,818.52/121,192.50 = 53,820.45/x
  3. Step 3: Cross multiply
    87,818.52x = 121,192.50 × 53,820.45
  4. Step 4: Simplify right side
    87,818.52x = 6,522,634,886.63
  5. Step 5: Solve for x
    x = 6,522,634,886.63/87,818.52
  6. Step 6: Final answer
    x = 74,274.02

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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.