Home / 88,142.06-121,543.04-62,621.82

Finding the Fourth Proportional to 88,142.06, 121,543.04 and 62,621.82

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Solution

The fourth proportional to 88,142.06, 121,543.04 and 62,621.82 is: 86,352.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,142.06 : 121,543.04 = 62,621.82 : x
  2. Step 2: Convert to fraction form
    88,142.06/121,543.04 = 62,621.82/x
  3. Step 3: Cross multiply
    88,142.06x = 121,543.04 × 62,621.82
  4. Step 4: Simplify right side
    88,142.06x = 7,611,246,373.13
  5. Step 5: Solve for x
    x = 7,611,246,373.13/88,142.06
  6. Step 6: Final answer
    x = 86,352.04

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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.