Home / 83,421.02-115,122.69-45,695.30

Finding the Fourth Proportional to 83,421.02, 115,122.69 and 45,695.30

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Solution

The fourth proportional to 83,421.02, 115,122.69 and 45,695.30 is: 63,060.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,421.02 : 115,122.69 = 45,695.30 : x
  2. Step 2: Convert to fraction form
    83,421.02/115,122.69 = 45,695.30/x
  3. Step 3: Cross multiply
    83,421.02x = 115,122.69 × 45,695.30
  4. Step 4: Simplify right side
    83,421.02x = 5,260,565,856.36
  5. Step 5: Solve for x
    x = 5,260,565,856.36/83,421.02
  6. Step 6: Final answer
    x = 63,060.44

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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.