Home / 83,557.68-115,307.40-45,829.56

Finding the Fourth Proportional to 83,557.68, 115,307.40 and 45,829.56

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Solution

The fourth proportional to 83,557.68, 115,307.40 and 45,829.56 is: 63,243.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,557.68 : 115,307.40 = 45,829.56 : x
  2. Step 2: Convert to fraction form
    83,557.68/115,307.40 = 45,829.56/x
  3. Step 3: Cross multiply
    83,557.68x = 115,307.40 × 45,829.56
  4. Step 4: Simplify right side
    83,557.68x = 5,284,487,406.74
  5. Step 5: Solve for x
    x = 5,284,487,406.74/83,557.68
  6. Step 6: Final answer
    x = 63,243.59

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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.