Home / 88,903.56-133,408.38-31,972.70

Finding the Fourth Proportional to 88,903.56, 133,408.38 and 31,972.70

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Solution

The fourth proportional to 88,903.56, 133,408.38 and 31,972.70 is: 47,978.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,903.56 : 133,408.38 = 31,972.70 : x
  2. Step 2: Convert to fraction form
    88,903.56/133,408.38 = 31,972.70/x
  3. Step 3: Cross multiply
    88,903.56x = 133,408.38 × 31,972.70
  4. Step 4: Simplify right side
    88,903.56x = 4,265,426,111.23
  5. Step 5: Solve for x
    x = 4,265,426,111.23/88,903.56
  6. Step 6: Final answer
    x = 47,978.12

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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.