Home / 79,638.28-119,317.28-74,897.35

Finding the Fourth Proportional to 79,638.28, 119,317.28 and 74,897.35

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Solution

The fourth proportional to 79,638.28, 119,317.28 and 74,897.35 is: 112,214.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,638.28 : 119,317.28 = 74,897.35 : x
  2. Step 2: Convert to fraction form
    79,638.28/119,317.28 = 74,897.35/x
  3. Step 3: Cross multiply
    79,638.28x = 119,317.28 × 74,897.35
  4. Step 4: Simplify right side
    79,638.28x = 8,936,547,688.27
  5. Step 5: Solve for x
    x = 8,936,547,688.27/79,638.28
  6. Step 6: Final answer
    x = 112,214.23

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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.