Home / 83,421.36-115,117.20-45,694.80

Finding the Fourth Proportional to 83,421.36, 115,117.20 and 45,694.80

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Solution

The fourth proportional to 83,421.36, 115,117.20 and 45,694.80 is: 63,056.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,421.36 : 115,117.20 = 45,694.80 : x
  2. Step 2: Convert to fraction form
    83,421.36/115,117.20 = 45,694.80/x
  3. Step 3: Cross multiply
    83,421.36x = 115,117.20 × 45,694.80
  4. Step 4: Simplify right side
    83,421.36x = 5,260,257,430.56
  5. Step 5: Solve for x
    x = 5,260,257,430.56/83,421.36
  6. Step 6: Final answer
    x = 63,056.48

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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.