Home / 42,670.98-58,867.20-40,694.58

Finding the Fourth Proportional to 42,670.98, 58,867.20 and 40,694.58

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Solution

The fourth proportional to 42,670.98, 58,867.20 and 40,694.58 is: 56,140.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,670.98 : 58,867.20 = 40,694.58 : x
  2. Step 2: Convert to fraction form
    42,670.98/58,867.20 = 40,694.58/x
  3. Step 3: Cross multiply
    42,670.98x = 58,867.20 × 40,694.58
  4. Step 4: Simplify right side
    42,670.98x = 2,395,575,979.78
  5. Step 5: Solve for x
    x = 2,395,575,979.78/42,670.98
  6. Step 6: Final answer
    x = 56,140.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.