Home / 83,938.59-115,845.26-48,128.49

Finding the Fourth Proportional to 83,938.59, 115,845.26 and 48,128.49

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Solution

The fourth proportional to 83,938.59, 115,845.26 and 48,128.49 is: 66,423.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,938.59 : 115,845.26 = 48,128.49 : x
  2. Step 2: Convert to fraction form
    83,938.59/115,845.26 = 48,128.49/x
  3. Step 3: Cross multiply
    83,938.59x = 115,845.26 × 48,128.49
  4. Step 4: Simplify right side
    83,938.59x = 5,575,457,437.46
  5. Step 5: Solve for x
    x = 5,575,457,437.46/83,938.59
  6. Step 6: Final answer
    x = 66,423.05

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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.