Home / 90,218.07-135,220.98-36,877.14

Finding the Fourth Proportional to 90,218.07, 135,220.98 and 36,877.14

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Solution

The fourth proportional to 90,218.07, 135,220.98 and 36,877.14 is: 55,272.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,218.07 : 135,220.98 = 36,877.14 : x
  2. Step 2: Convert to fraction form
    90,218.07/135,220.98 = 36,877.14/x
  3. Step 3: Cross multiply
    90,218.07x = 135,220.98 × 36,877.14
  4. Step 4: Simplify right side
    90,218.07x = 4,986,563,010.40
  5. Step 5: Solve for x
    x = 4,986,563,010.40/90,218.07
  6. Step 6: Final answer
    x = 55,272.33

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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.