Home / 84,501.10-126,751.65-51,258.70

Finding the Fourth Proportional to 84,501.10, 126,751.65 and 51,258.70

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Solution

The fourth proportional to 84,501.10, 126,751.65 and 51,258.70 is: 76,888.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,501.10 : 126,751.65 = 51,258.70 : x
  2. Step 2: Convert to fraction form
    84,501.10/126,751.65 = 51,258.70/x
  3. Step 3: Cross multiply
    84,501.10x = 126,751.65 × 51,258.70
  4. Step 4: Simplify right side
    84,501.10x = 6,497,124,801.86
  5. Step 5: Solve for x
    x = 6,497,124,801.86/84,501.10
  6. Step 6: Final answer
    x = 76,888.05

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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.