Home / 84,904.12-127,356.53-25,740.31

Finding the Fourth Proportional to 84,904.12, 127,356.53 and 25,740.31

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Solution

The fourth proportional to 84,904.12, 127,356.53 and 25,740.31 is: 38,610.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,904.12 : 127,356.53 = 25,740.31 : x
  2. Step 2: Convert to fraction form
    84,904.12/127,356.53 = 25,740.31/x
  3. Step 3: Cross multiply
    84,904.12x = 127,356.53 × 25,740.31
  4. Step 4: Simplify right side
    84,904.12x = 3,278,196,068.63
  5. Step 5: Solve for x
    x = 3,278,196,068.63/84,904.12
  6. Step 6: Final answer
    x = 38,610.56

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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.