Home / 99,948.36-137,944.62-57,498.60

Finding the Fourth Proportional to 99,948.36, 137,944.62 and 57,498.60

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Solution

The fourth proportional to 99,948.36, 137,944.62 and 57,498.60 is: 79,357.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,948.36 : 137,944.62 = 57,498.60 : x
  2. Step 2: Convert to fraction form
    99,948.36/137,944.62 = 57,498.60/x
  3. Step 3: Cross multiply
    99,948.36x = 137,944.62 × 57,498.60
  4. Step 4: Simplify right side
    99,948.36x = 7,931,622,527.53
  5. Step 5: Solve for x
    x = 7,931,622,527.53/99,948.36
  6. Step 6: Final answer
    x = 79,357.21

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1.5x scale

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.