Home / 40,667.20-61,000.80-40,278.40

Finding the Fourth Proportional to 40,667.20, 61,000.80 and 40,278.40

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Solution

The fourth proportional to 40,667.20, 61,000.80 and 40,278.40 is: 60,417.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,667.20 : 61,000.80 = 40,278.40 : x
  2. Step 2: Convert to fraction form
    40,667.20/61,000.80 = 40,278.40/x
  3. Step 3: Cross multiply
    40,667.20x = 61,000.80 × 40,278.40
  4. Step 4: Simplify right side
    40,667.20x = 2,457,014,622.72
  5. Step 5: Solve for x
    x = 2,457,014,622.72/40,667.20
  6. Step 6: Final answer
    x = 60,417.60

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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.