Home / 79,931.40-119,897.07-23,771.28

Finding the Fourth Proportional to 79,931.40, 119,897.07 and 23,771.28

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Solution

The fourth proportional to 79,931.40, 119,897.07 and 23,771.28 is: 35,656.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,931.40 : 119,897.07 = 23,771.28 : x
  2. Step 2: Convert to fraction form
    79,931.40/119,897.07 = 23,771.28/x
  3. Step 3: Cross multiply
    79,931.40x = 119,897.07 × 23,771.28
  4. Step 4: Simplify right side
    79,931.40x = 2,850,106,822.15
  5. Step 5: Solve for x
    x = 2,850,106,822.15/79,931.40
  6. Step 6: Final answer
    x = 35,656.91

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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.