Home / 84,828.60-127,340.10-45,365.40

Finding the Fourth Proportional to 84,828.60, 127,340.10 and 45,365.40

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Solution

The fourth proportional to 84,828.60, 127,340.10 and 45,365.40 is: 68,100.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,828.60 : 127,340.10 = 45,365.40 : x
  2. Step 2: Convert to fraction form
    84,828.60/127,340.10 = 45,365.40/x
  3. Step 3: Cross multiply
    84,828.60x = 127,340.10 × 45,365.40
  4. Step 4: Simplify right side
    84,828.60x = 5,776,834,572.54
  5. Step 5: Solve for x
    x = 5,776,834,572.54/84,828.60
  6. Step 6: Final answer
    x = 68,100.08

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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.