Home / 74,014.80-111,036.76-21,424.72

Finding the Fourth Proportional to 74,014.80, 111,036.76 and 21,424.72

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Solution

The fourth proportional to 74,014.80, 111,036.76 and 21,424.72 is: 32,141.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,014.80 : 111,036.76 = 21,424.72 : x
  2. Step 2: Convert to fraction form
    74,014.80/111,036.76 = 21,424.72/x
  3. Step 3: Cross multiply
    74,014.80x = 111,036.76 × 21,424.72
  4. Step 4: Simplify right side
    74,014.80x = 2,378,931,492.71
  5. Step 5: Solve for x
    x = 2,378,931,492.71/74,014.80
  6. Step 6: Final answer
    x = 32,141.29

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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.