Home / 90,852.03-136,278.63-31,687.47

Finding the Fourth Proportional to 90,852.03, 136,278.63 and 31,687.47

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Solution

The fourth proportional to 90,852.03, 136,278.63 and 31,687.47 is: 47,531.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,852.03 : 136,278.63 = 31,687.47 : x
  2. Step 2: Convert to fraction form
    90,852.03/136,278.63 = 31,687.47/x
  3. Step 3: Cross multiply
    90,852.03x = 136,278.63 × 31,687.47
  4. Step 4: Simplify right side
    90,852.03x = 4,318,324,999.77
  5. Step 5: Solve for x
    x = 4,318,324,999.77/90,852.03
  6. Step 6: Final answer
    x = 47,531.41

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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.