Home / 83,400.90-115,092.74-45,160.07

Finding the Fourth Proportional to 83,400.90, 115,092.74 and 45,160.07

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Solution

The fourth proportional to 83,400.90, 115,092.74 and 45,160.07 is: 62,320.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,400.90 : 115,092.74 = 45,160.07 : x
  2. Step 2: Convert to fraction form
    83,400.90/115,092.74 = 45,160.07/x
  3. Step 3: Cross multiply
    83,400.90x = 115,092.74 × 45,160.07
  4. Step 4: Simplify right side
    83,400.90x = 5,197,595,393.63
  5. Step 5: Solve for x
    x = 5,197,595,393.63/83,400.90
  6. Step 6: Final answer
    x = 62,320.62

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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.