Home / 49,948.20-74,703.60-38,138.40

Finding the Fourth Proportional to 49,948.20, 74,703.60 and 38,138.40

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Solution

The fourth proportional to 49,948.20, 74,703.60 and 38,138.40 is: 57,040.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,948.20 : 74,703.60 = 38,138.40 : x
  2. Step 2: Convert to fraction form
    49,948.20/74,703.60 = 38,138.40/x
  3. Step 3: Cross multiply
    49,948.20x = 74,703.60 × 38,138.40
  4. Step 4: Simplify right side
    49,948.20x = 2,849,075,778.24
  5. Step 5: Solve for x
    x = 2,849,075,778.24/49,948.20
  6. Step 6: Final answer
    x = 57,040.61

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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.