Home / 75,317.92-103,937.78-40,862.12

Finding the Fourth Proportional to 75,317.92, 103,937.78 and 40,862.12

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Solution

The fourth proportional to 75,317.92, 103,937.78 and 40,862.12 is: 56,389.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,317.92 : 103,937.78 = 40,862.12 : x
  2. Step 2: Convert to fraction form
    75,317.92/103,937.78 = 40,862.12/x
  3. Step 3: Cross multiply
    75,317.92x = 103,937.78 × 40,862.12
  4. Step 4: Simplify right side
    75,317.92x = 4,247,118,038.89
  5. Step 5: Solve for x
    x = 4,247,118,038.89/75,317.92
  6. Step 6: Final answer
    x = 56,389.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.