Home / 84,276.03-126,365.13-39,902.40

Finding the Fourth Proportional to 84,276.03, 126,365.13 and 39,902.40

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Solution

The fourth proportional to 84,276.03, 126,365.13 and 39,902.40 is: 59,830.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,276.03 : 126,365.13 = 39,902.40 : x
  2. Step 2: Convert to fraction form
    84,276.03/126,365.13 = 39,902.40/x
  3. Step 3: Cross multiply
    84,276.03x = 126,365.13 × 39,902.40
  4. Step 4: Simplify right side
    84,276.03x = 5,042,271,963.31
  5. Step 5: Solve for x
    x = 5,042,271,963.31/84,276.03
  6. Step 6: Final answer
    x = 59,830.44

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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.