Home / 90,979.14-125,547.63-50,691.86

Finding the Fourth Proportional to 90,979.14, 125,547.63 and 50,691.86

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Solution

The fourth proportional to 90,979.14, 125,547.63 and 50,691.86 is: 69,952.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,979.14 : 125,547.63 = 50,691.86 : x
  2. Step 2: Convert to fraction form
    90,979.14/125,547.63 = 50,691.86/x
  3. Step 3: Cross multiply
    90,979.14x = 125,547.63 × 50,691.86
  4. Step 4: Simplify right side
    90,979.14x = 6,364,242,883.29
  5. Step 5: Solve for x
    x = 6,364,242,883.29/90,979.14
  6. Step 6: Final answer
    x = 69,952.77

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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.