Home / 83,728.76-115,547.82-45,487.92

Finding the Fourth Proportional to 83,728.76, 115,547.82 and 45,487.92

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Solution

The fourth proportional to 83,728.76, 115,547.82 and 45,487.92 is: 62,774.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,728.76 : 115,547.82 = 45,487.92 : x
  2. Step 2: Convert to fraction form
    83,728.76/115,547.82 = 45,487.92/x
  3. Step 3: Cross multiply
    83,728.76x = 115,547.82 × 45,487.92
  4. Step 4: Simplify right side
    83,728.76x = 5,256,030,255.06
  5. Step 5: Solve for x
    x = 5,256,030,255.06/83,728.76
  6. Step 6: Final answer
    x = 62,774.49

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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.