Home / 42,870.96-64,306.44-23,158.80

Finding the Fourth Proportional to 42,870.96, 64,306.44 and 23,158.80

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Solution

The fourth proportional to 42,870.96, 64,306.44 and 23,158.80 is: 34,738.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,870.96 : 64,306.44 = 23,158.80 : x
  2. Step 2: Convert to fraction form
    42,870.96/64,306.44 = 23,158.80/x
  3. Step 3: Cross multiply
    42,870.96x = 64,306.44 × 23,158.80
  4. Step 4: Simplify right side
    42,870.96x = 1,489,259,982.67
  5. Step 5: Solve for x
    x = 1,489,259,982.67/42,870.96
  6. Step 6: Final answer
    x = 34,738.20

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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.