Home / 83,615.42-125,390.45-30,294.74

Finding the Fourth Proportional to 83,615.42, 125,390.45 and 30,294.74

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Solution

The fourth proportional to 83,615.42, 125,390.45 and 30,294.74 is: 45,430.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,615.42 : 125,390.45 = 30,294.74 : x
  2. Step 2: Convert to fraction form
    83,615.42/125,390.45 = 30,294.74/x
  3. Step 3: Cross multiply
    83,615.42x = 125,390.45 × 30,294.74
  4. Step 4: Simplify right side
    83,615.42x = 3,798,671,470.45
  5. Step 5: Solve for x
    x = 3,798,671,470.45/83,615.42
  6. Step 6: Final answer
    x = 45,430.27

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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.