Home / 64,981.86-97,319.25-31,724.70

Finding the Fourth Proportional to 64,981.86, 97,319.25 and 31,724.70

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Solution

The fourth proportional to 64,981.86, 97,319.25 and 31,724.70 is: 47,512.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,981.86 : 97,319.25 = 31,724.70 : x
  2. Step 2: Convert to fraction form
    64,981.86/97,319.25 = 31,724.70/x
  3. Step 3: Cross multiply
    64,981.86x = 97,319.25 × 31,724.70
  4. Step 4: Simplify right side
    64,981.86x = 3,087,424,010.48
  5. Step 5: Solve for x
    x = 3,087,424,010.48/64,981.86
  6. Step 6: Final answer
    x = 47,512.09

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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.