Home / 74,964.11-103,450.29-42,698.72

Finding the Fourth Proportional to 74,964.11, 103,450.29 and 42,698.72

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Solution

The fourth proportional to 74,964.11, 103,450.29 and 42,698.72 is: 58,924.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,964.11 : 103,450.29 = 42,698.72 : x
  2. Step 2: Convert to fraction form
    74,964.11/103,450.29 = 42,698.72/x
  3. Step 3: Cross multiply
    74,964.11x = 103,450.29 × 42,698.72
  4. Step 4: Simplify right side
    74,964.11x = 4,417,194,966.63
  5. Step 5: Solve for x
    x = 4,417,194,966.63/74,964.11
  6. Step 6: Final answer
    x = 58,924.13

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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.