Home / 64,768.17-97,126.74-31,478.40

Finding the Fourth Proportional to 64,768.17, 97,126.74 and 31,478.40

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Solution

The fourth proportional to 64,768.17, 97,126.74 and 31,478.40 is: 47,205.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,768.17 : 97,126.74 = 31,478.40 : x
  2. Step 2: Convert to fraction form
    64,768.17/97,126.74 = 31,478.40/x
  3. Step 3: Cross multiply
    64,768.17x = 97,126.74 × 31,478.40
  4. Step 4: Simplify right side
    64,768.17x = 3,057,394,372.42
  5. Step 5: Solve for x
    x = 3,057,394,372.42/64,768.17
  6. Step 6: Final answer
    x = 47,205.20

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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.