Home / 90,108.93-135,170.61-27,779.25

Finding the Fourth Proportional to 90,108.93, 135,170.61 and 27,779.25

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Solution

The fourth proportional to 90,108.93, 135,170.61 and 27,779.25 is: 41,671.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,108.93 : 135,170.61 = 27,779.25 : x
  2. Step 2: Convert to fraction form
    90,108.93/135,170.61 = 27,779.25/x
  3. Step 3: Cross multiply
    90,108.93x = 135,170.61 × 27,779.25
  4. Step 4: Simplify right side
    90,108.93x = 3,754,938,167.84
  5. Step 5: Solve for x
    x = 3,754,938,167.84/90,108.93
  6. Step 6: Final answer
    x = 41,671.10

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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.