Home / 40,288.40-60,432.60-31,072.40

Finding the Fourth Proportional to 40,288.40, 60,432.60 and 31,072.40

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Solution

The fourth proportional to 40,288.40, 60,432.60 and 31,072.40 is: 46,608.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,288.40 : 60,432.60 = 31,072.40 : x
  2. Step 2: Convert to fraction form
    40,288.40/60,432.60 = 31,072.40/x
  3. Step 3: Cross multiply
    40,288.40x = 60,432.60 × 31,072.40
  4. Step 4: Simplify right side
    40,288.40x = 1,877,785,920.24
  5. Step 5: Solve for x
    x = 1,877,785,920.24/40,288.40
  6. Step 6: Final answer
    x = 46,608.60

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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.