Home / 83,820.27-115,719.80-55,564.23

Finding the Fourth Proportional to 83,820.27, 115,719.80 and 55,564.23

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Solution

The fourth proportional to 83,820.27, 115,719.80 and 55,564.23 is: 76,710.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,820.27 : 115,719.80 = 55,564.23 : x
  2. Step 2: Convert to fraction form
    83,820.27/115,719.80 = 55,564.23/x
  3. Step 3: Cross multiply
    83,820.27x = 115,719.80 × 55,564.23
  4. Step 4: Simplify right side
    83,820.27x = 6,429,881,304.93
  5. Step 5: Solve for x
    x = 6,429,881,304.93/83,820.27
  6. Step 6: Final answer
    x = 76,710.34

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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.