Home / 90,771.71-125,199.27-69,998.45

Finding the Fourth Proportional to 90,771.71, 125,199.27 and 69,998.45

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Solution

The fourth proportional to 90,771.71, 125,199.27 and 69,998.45 is: 96,547.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,771.71 : 125,199.27 = 69,998.45 : x
  2. Step 2: Convert to fraction form
    90,771.71/125,199.27 = 69,998.45/x
  3. Step 3: Cross multiply
    90,771.71x = 125,199.27 × 69,998.45
  4. Step 4: Simplify right side
    90,771.71x = 8,763,754,215.14
  5. Step 5: Solve for x
    x = 8,763,754,215.14/90,771.71
  6. Step 6: Final answer
    x = 96,547.20

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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.