Home / 75,916.48-113,874.40-42,636.80

Finding the Fourth Proportional to 75,916.48, 113,874.40 and 42,636.80

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Solution

The fourth proportional to 75,916.48, 113,874.40 and 42,636.80 is: 63,955.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,916.48 : 113,874.40 = 42,636.80 : x
  2. Step 2: Convert to fraction form
    75,916.48/113,874.40 = 42,636.80/x
  3. Step 3: Cross multiply
    75,916.48x = 113,874.40 × 42,636.80
  4. Step 4: Simplify right side
    75,916.48x = 4,855,240,017.92
  5. Step 5: Solve for x
    x = 4,855,240,017.92/75,916.48
  6. Step 6: Final answer
    x = 63,955.02

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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.