Home / 48,588.80-72,883.20-31,078.40

Finding the Fourth Proportional to 48,588.80, 72,883.20 and 31,078.40

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Solution

The fourth proportional to 48,588.80, 72,883.20 and 31,078.40 is: 46,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,588.80 : 72,883.20 = 31,078.40 : x
  2. Step 2: Convert to fraction form
    48,588.80/72,883.20 = 31,078.40/x
  3. Step 3: Cross multiply
    48,588.80x = 72,883.20 × 31,078.40
  4. Step 4: Simplify right side
    48,588.80x = 2,265,093,242.88
  5. Step 5: Solve for x
    x = 2,265,093,242.88/48,588.80
  6. Step 6: Final answer
    x = 46,617.60

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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.