Home / 79,118.02-118,679.28-25,809.76

Finding the Fourth Proportional to 79,118.02, 118,679.28 and 25,809.76

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Solution

The fourth proportional to 79,118.02, 118,679.28 and 25,809.76 is: 38,715.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,118.02 : 118,679.28 = 25,809.76 : x
  2. Step 2: Convert to fraction form
    79,118.02/118,679.28 = 25,809.76/x
  3. Step 3: Cross multiply
    79,118.02x = 118,679.28 × 25,809.76
  4. Step 4: Simplify right side
    79,118.02x = 3,063,083,733.77
  5. Step 5: Solve for x
    x = 3,063,083,733.77/79,118.02
  6. Step 6: Final answer
    x = 38,715.37

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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.