Home / 52,478.16-72,427.41-31,257.78

Finding the Fourth Proportional to 52,478.16, 72,427.41 and 31,257.78

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Solution

The fourth proportional to 52,478.16, 72,427.41 and 31,257.78 is: 43,140.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,478.16 : 72,427.41 = 31,257.78 : x
  2. Step 2: Convert to fraction form
    52,478.16/72,427.41 = 31,257.78/x
  3. Step 3: Cross multiply
    52,478.16x = 72,427.41 × 31,257.78
  4. Step 4: Simplify right side
    52,478.16x = 2,263,920,047.75
  5. Step 5: Solve for x
    x = 2,263,920,047.75/52,478.16
  6. Step 6: Final answer
    x = 43,140.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.