Home / 77,118.08-106,423.70-45,287.52

Finding the Fourth Proportional to 77,118.08, 106,423.70 and 45,287.52

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Solution

The fourth proportional to 77,118.08, 106,423.70 and 45,287.52 is: 62,497.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,118.08 : 106,423.70 = 45,287.52 : x
  2. Step 2: Convert to fraction form
    77,118.08/106,423.70 = 45,287.52/x
  3. Step 3: Cross multiply
    77,118.08x = 106,423.70 × 45,287.52
  4. Step 4: Simplify right side
    77,118.08x = 4,819,665,442.22
  5. Step 5: Solve for x
    x = 4,819,665,442.22/77,118.08
  6. Step 6: Final answer
    x = 62,497.22

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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.