Home / 90,894.71-136,278.79-40,266.25

Finding the Fourth Proportional to 90,894.71, 136,278.79 and 40,266.25

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Solution

The fourth proportional to 90,894.71, 136,278.79 and 40,266.25 is: 60,371.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,894.71 : 136,278.79 = 40,266.25 : x
  2. Step 2: Convert to fraction form
    90,894.71/136,278.79 = 40,266.25/x
  3. Step 3: Cross multiply
    90,894.71x = 136,278.79 × 40,266.25
  4. Step 4: Simplify right side
    90,894.71x = 5,487,435,827.84
  5. Step 5: Solve for x
    x = 5,487,435,827.84/90,894.71
  6. Step 6: Final answer
    x = 60,371.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.