Home / 83,543.08-115,278.79-47,735.41

Finding the Fourth Proportional to 83,543.08, 115,278.79 and 47,735.41

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Solution

The fourth proportional to 83,543.08, 115,278.79 and 47,735.41 is: 65,868.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,543.08 : 115,278.79 = 47,735.41 : x
  2. Step 2: Convert to fraction form
    83,543.08/115,278.79 = 47,735.41/x
  3. Step 3: Cross multiply
    83,543.08x = 115,278.79 × 47,735.41
  4. Step 4: Simplify right side
    83,543.08x = 5,502,880,304.95
  5. Step 5: Solve for x
    x = 5,502,880,304.95/83,543.08
  6. Step 6: Final answer
    x = 65,868.77

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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.