Home / 77,875.20-116,870.40-51,571.20

Finding the Fourth Proportional to 77,875.20, 116,870.40 and 51,571.20

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Solution

The fourth proportional to 77,875.20, 116,870.40 and 51,571.20 is: 77,394.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,875.20 : 116,870.40 = 51,571.20 : x
  2. Step 2: Convert to fraction form
    77,875.20/116,870.40 = 51,571.20/x
  3. Step 3: Cross multiply
    77,875.20x = 116,870.40 × 51,571.20
  4. Step 4: Simplify right side
    77,875.20x = 6,027,146,772.48
  5. Step 5: Solve for x
    x = 6,027,146,772.48/77,875.20
  6. Step 6: Final answer
    x = 77,394.94

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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.