Home / 90,077.80-124,307.39-49,242.11

Finding the Fourth Proportional to 90,077.80, 124,307.39 and 49,242.11

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Solution

The fourth proportional to 90,077.80, 124,307.39 and 49,242.11 is: 67,954.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,077.80 : 124,307.39 = 49,242.11 : x
  2. Step 2: Convert to fraction form
    90,077.80/124,307.39 = 49,242.11/x
  3. Step 3: Cross multiply
    90,077.80x = 124,307.39 × 49,242.11
  4. Step 4: Simplify right side
    90,077.80x = 6,121,157,673.76
  5. Step 5: Solve for x
    x = 6,121,157,673.76/90,077.80
  6. Step 6: Final answer
    x = 67,954.12

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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.