Home / 84,900.20-127,368.72-25,740.50

Finding the Fourth Proportional to 84,900.20, 127,368.72 and 25,740.50

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Solution

The fourth proportional to 84,900.20, 127,368.72 and 25,740.50 is: 38,616.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,900.20 : 127,368.72 = 25,740.50 : x
  2. Step 2: Convert to fraction form
    84,900.20/127,368.72 = 25,740.50/x
  3. Step 3: Cross multiply
    84,900.20x = 127,368.72 × 25,740.50
  4. Step 4: Simplify right side
    84,900.20x = 3,278,533,900.32
  5. Step 5: Solve for x
    x = 3,278,533,900.32/84,900.20
  6. Step 6: Final answer
    x = 38,616.33

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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.