Home / 83,785.59-115,626.08-45,547.31

Finding the Fourth Proportional to 83,785.59, 115,626.08 and 45,547.31

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Solution

The fourth proportional to 83,785.59, 115,626.08 and 45,547.31 is: 62,856.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,785.59 : 115,626.08 = 45,547.31 : x
  2. Step 2: Convert to fraction form
    83,785.59/115,626.08 = 45,547.31/x
  3. Step 3: Cross multiply
    83,785.59x = 115,626.08 × 45,547.31
  4. Step 4: Simplify right side
    83,785.59x = 5,266,457,312.78
  5. Step 5: Solve for x
    x = 5,266,457,312.78/83,785.59
  6. Step 6: Final answer
    x = 62,856.36

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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.