Home / 83,643.19-115,412.72-47,344.46

Finding the Fourth Proportional to 83,643.19, 115,412.72 and 47,344.46

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Solution

The fourth proportional to 83,643.19, 115,412.72 and 47,344.46 is: 65,326.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,643.19 : 115,412.72 = 47,344.46 : x
  2. Step 2: Convert to fraction form
    83,643.19/115,412.72 = 47,344.46/x
  3. Step 3: Cross multiply
    83,643.19x = 115,412.72 × 47,344.46
  4. Step 4: Simplify right side
    83,643.19x = 5,464,152,091.75
  5. Step 5: Solve for x
    x = 5,464,152,091.75/83,643.19
  6. Step 6: Final answer
    x = 65,326.92

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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.