Home / 42,321.40-58,670.90-40,074.32

Finding the Fourth Proportional to 42,321.40, 58,670.90 and 40,074.32

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Solution

The fourth proportional to 42,321.40, 58,670.90 and 40,074.32 is: 55,555.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,321.40 : 58,670.90 = 40,074.32 : x
  2. Step 2: Convert to fraction form
    42,321.40/58,670.90 = 40,074.32/x
  3. Step 3: Cross multiply
    42,321.40x = 58,670.90 × 40,074.32
  4. Step 4: Simplify right side
    42,321.40x = 2,351,196,421.29
  5. Step 5: Solve for x
    x = 2,351,196,421.29/42,321.40
  6. Step 6: Final answer
    x = 55,555.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.