Home / 51,802.40-77,761.20-48,418.40

Finding the Fourth Proportional to 51,802.40, 77,761.20 and 48,418.40

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Solution

The fourth proportional to 51,802.40, 77,761.20 and 48,418.40 is: 72,681.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,802.40 : 77,761.20 = 48,418.40 : x
  2. Step 2: Convert to fraction form
    51,802.40/77,761.20 = 48,418.40/x
  3. Step 3: Cross multiply
    51,802.40x = 77,761.20 × 48,418.40
  4. Step 4: Simplify right side
    51,802.40x = 3,765,072,886.08
  5. Step 5: Solve for x
    x = 3,765,072,886.08/51,802.40
  6. Step 6: Final answer
    x = 72,681.44

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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.