Home / 88,393.48-121,920.90-58,169.16

Finding the Fourth Proportional to 88,393.48, 121,920.90 and 58,169.16

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Solution

The fourth proportional to 88,393.48, 121,920.90 and 58,169.16 is: 80,232.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,393.48 : 121,920.90 = 58,169.16 : x
  2. Step 2: Convert to fraction form
    88,393.48/121,920.90 = 58,169.16/x
  3. Step 3: Cross multiply
    88,393.48x = 121,920.90 × 58,169.16
  4. Step 4: Simplify right side
    88,393.48x = 7,092,036,339.44
  5. Step 5: Solve for x
    x = 7,092,036,339.44/88,393.48
  6. Step 6: Final answer
    x = 80,232.57

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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.