Home / 60,157.12-90,178.93-20,686.63

Finding the Fourth Proportional to 60,157.12, 90,178.93 and 20,686.63

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Solution

The fourth proportional to 60,157.12, 90,178.93 and 20,686.63 is: 31,010.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,157.12 : 90,178.93 = 20,686.63 : x
  2. Step 2: Convert to fraction form
    60,157.12/90,178.93 = 20,686.63/x
  3. Step 3: Cross multiply
    60,157.12x = 90,178.93 × 20,686.63
  4. Step 4: Simplify right side
    60,157.12x = 1,865,498,158.71
  5. Step 5: Solve for x
    x = 1,865,498,158.71/60,157.12
  6. Step 6: Final answer
    x = 31,010.43

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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.