Home / 67,917.28-93,726-38,109.28

Finding the Fourth Proportional to 67,917.28, 93,726 and 38,109.28

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Solution

The fourth proportional to 67,917.28, 93,726 and 38,109.28 is: 52,590.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,917.28 : 93,726 = 38,109.28 : x
  2. Step 2: Convert to fraction form
    67,917.28/93,726 = 38,109.28/x
  3. Step 3: Cross multiply
    67,917.28x = 93,726 × 38,109.28
  4. Step 4: Simplify right side
    67,917.28x = 3,571,830,377.28
  5. Step 5: Solve for x
    x = 3,571,830,377.28/67,917.28
  6. Step 6: Final answer
    x = 52,590.89

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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.