Home / 77,966.20-117,006.90-51,662.20

Finding the Fourth Proportional to 77,966.20, 117,006.90 and 51,662.20

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Solution

The fourth proportional to 77,966.20, 117,006.90 and 51,662.20 is: 77,531.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,966.20 : 117,006.90 = 51,662.20 : x
  2. Step 2: Convert to fraction form
    77,966.20/117,006.90 = 51,662.20/x
  3. Step 3: Cross multiply
    77,966.20x = 117,006.90 × 51,662.20
  4. Step 4: Simplify right side
    77,966.20x = 6,044,833,869.18
  5. Step 5: Solve for x
    x = 6,044,833,869.18/77,966.20
  6. Step 6: Final answer
    x = 77,531.47

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1.5x scale

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.