Home / 90,280.53-135,432.66-31,100.31

Finding the Fourth Proportional to 90,280.53, 135,432.66 and 31,100.31

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Solution

The fourth proportional to 90,280.53, 135,432.66 and 31,100.31 is: 46,654.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,280.53 : 135,432.66 = 31,100.31 : x
  2. Step 2: Convert to fraction form
    90,280.53/135,432.66 = 31,100.31/x
  3. Step 3: Cross multiply
    90,280.53x = 135,432.66 × 31,100.31
  4. Step 4: Simplify right side
    90,280.53x = 4,211,997,710.12
  5. Step 5: Solve for x
    x = 4,211,997,710.12/90,280.53
  6. Step 6: Final answer
    x = 46,654.55

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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.