Home / 83,869.32-115,741.80-45,631.08

Finding the Fourth Proportional to 83,869.32, 115,741.80 and 45,631.08

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Solution

The fourth proportional to 83,869.32, 115,741.80 and 45,631.08 is: 62,972.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,869.32 : 115,741.80 = 45,631.08 : x
  2. Step 2: Convert to fraction form
    83,869.32/115,741.80 = 45,631.08/x
  3. Step 3: Cross multiply
    83,869.32x = 115,741.80 × 45,631.08
  4. Step 4: Simplify right side
    83,869.32x = 5,281,423,335.14
  5. Step 5: Solve for x
    x = 5,281,423,335.14/83,869.32
  6. Step 6: Final answer
    x = 62,972.05

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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.