Home / 83,403.42-125,064.09-39,006.78

Finding the Fourth Proportional to 83,403.42, 125,064.09 and 39,006.78

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Solution

The fourth proportional to 83,403.42, 125,064.09 and 39,006.78 is: 58,490.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,403.42 : 125,064.09 = 39,006.78 : x
  2. Step 2: Convert to fraction form
    83,403.42/125,064.09 = 39,006.78/x
  3. Step 3: Cross multiply
    83,403.42x = 125,064.09 × 39,006.78
  4. Step 4: Simplify right side
    83,403.42x = 4,878,347,444.53
  5. Step 5: Solve for x
    x = 4,878,347,444.53/83,403.42
  6. Step 6: Final answer
    x = 58,490.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.