Home / 103,640.48-155,521.01-40,457.24

Finding the Fourth Proportional to 103,640.48, 155,521.01 and 40,457.24

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Solution

The fourth proportional to 103,640.48, 155,521.01 and 40,457.24 is: 60,709.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,640.48 : 155,521.01 = 40,457.24 : x
  2. Step 2: Convert to fraction form
    103,640.48/155,521.01 = 40,457.24/x
  3. Step 3: Cross multiply
    103,640.48x = 155,521.01 × 40,457.24
  4. Step 4: Simplify right side
    103,640.48x = 6,291,950,826.61
  5. Step 5: Solve for x
    x = 6,291,950,826.61/103,640.48
  6. Step 6: Final answer
    x = 60,709.39

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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.