Home / 84,209.76-126,208.86-42,101.57

Finding the Fourth Proportional to 84,209.76, 126,208.86 and 42,101.57

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Solution

The fourth proportional to 84,209.76, 126,208.86 and 42,101.57 is: 63,099.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,209.76 : 126,208.86 = 42,101.57 : x
  2. Step 2: Convert to fraction form
    84,209.76/126,208.86 = 42,101.57/x
  3. Step 3: Cross multiply
    84,209.76x = 126,208.86 × 42,101.57
  4. Step 4: Simplify right side
    84,209.76x = 5,313,590,522.87
  5. Step 5: Solve for x
    x = 5,313,590,522.87/84,209.76
  6. Step 6: Final answer
    x = 63,099.46

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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.