Home / 60,521.20-90,781.80-40,692.40

Finding the Fourth Proportional to 60,521.20, 90,781.80 and 40,692.40

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Solution

The fourth proportional to 60,521.20, 90,781.80 and 40,692.40 is: 61,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,521.20 : 90,781.80 = 40,692.40 : x
  2. Step 2: Convert to fraction form
    60,521.20/90,781.80 = 40,692.40/x
  3. Step 3: Cross multiply
    60,521.20x = 90,781.80 × 40,692.40
  4. Step 4: Simplify right side
    60,521.20x = 3,694,129,318.32
  5. Step 5: Solve for x
    x = 3,694,129,318.32/60,521.20
  6. Step 6: Final answer
    x = 61,038.60

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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.