Home / 84,100.48-126,150.72-47,190.40

Finding the Fourth Proportional to 84,100.48, 126,150.72 and 47,190.40

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Solution

The fourth proportional to 84,100.48, 126,150.72 and 47,190.40 is: 70,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,100.48 : 126,150.72 = 47,190.40 : x
  2. Step 2: Convert to fraction form
    84,100.48/126,150.72 = 47,190.40/x
  3. Step 3: Cross multiply
    84,100.48x = 126,150.72 × 47,190.40
  4. Step 4: Simplify right side
    84,100.48x = 5,953,102,937.09
  5. Step 5: Solve for x
    x = 5,953,102,937.09/84,100.48
  6. Step 6: Final answer
    x = 70,785.60

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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.