Home / 84,323.16-126,480.18-42,769.08

Finding the Fourth Proportional to 84,323.16, 126,480.18 and 42,769.08

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Solution

The fourth proportional to 84,323.16, 126,480.18 and 42,769.08 is: 64,151.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,323.16 : 126,480.18 = 42,769.08 : x
  2. Step 2: Convert to fraction form
    84,323.16/126,480.18 = 42,769.08/x
  3. Step 3: Cross multiply
    84,323.16x = 126,480.18 × 42,769.08
  4. Step 4: Simplify right side
    84,323.16x = 5,409,440,936.83
  5. Step 5: Solve for x
    x = 5,409,440,936.83/84,323.16
  6. Step 6: Final answer
    x = 64,151.31

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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.