Home / 83,707.14-115,483.30-47,400.25

Finding the Fourth Proportional to 83,707.14, 115,483.30 and 47,400.25

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Solution

The fourth proportional to 83,707.14, 115,483.30 and 47,400.25 is: 65,393.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,707.14 : 115,483.30 = 47,400.25 : x
  2. Step 2: Convert to fraction form
    83,707.14/115,483.30 = 47,400.25/x
  3. Step 3: Cross multiply
    83,707.14x = 115,483.30 × 47,400.25
  4. Step 4: Simplify right side
    83,707.14x = 5,473,937,262.55
  5. Step 5: Solve for x
    x = 5,473,937,262.55/83,707.14
  6. Step 6: Final answer
    x = 65,393.91

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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.