Home / 145,509.54-218,279.49-40,328.61

Finding the Fourth Proportional to 145,509.54, 218,279.49 and 40,328.61

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Solution

The fourth proportional to 145,509.54, 218,279.49 and 40,328.61 is: 60,497.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,509.54 : 218,279.49 = 40,328.61 : x
  2. Step 2: Convert to fraction form
    145,509.54/218,279.49 = 40,328.61/x
  3. Step 3: Cross multiply
    145,509.54x = 218,279.49 × 40,328.61
  4. Step 4: Simplify right side
    145,509.54x = 8,802,908,423.21
  5. Step 5: Solve for x
    x = 8,802,908,423.21/145,509.54
  6. Step 6: Final answer
    x = 60,497.12

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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.