Home / 85,009.35-127,521.15-25,845.53

Finding the Fourth Proportional to 85,009.35, 127,521.15 and 25,845.53

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Solution

The fourth proportional to 85,009.35, 127,521.15 and 25,845.53 is: 38,770.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,009.35 : 127,521.15 = 25,845.53 : x
  2. Step 2: Convert to fraction form
    85,009.35/127,521.15 = 25,845.53/x
  3. Step 3: Cross multiply
    85,009.35x = 127,521.15 × 25,845.53
  4. Step 4: Simplify right side
    85,009.35x = 3,295,852,026.76
  5. Step 5: Solve for x
    x = 3,295,852,026.76/85,009.35
  6. Step 6: Final answer
    x = 38,770.46

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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.