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Finding the Fourth Proportional to 64,865.22, 89,506.05 and 38,001.57

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Solution

The fourth proportional to 64,865.22, 89,506.05 and 38,001.57 is: 52,437.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,865.22 : 89,506.05 = 38,001.57 : x
  2. Step 2: Convert to fraction form
    64,865.22/89,506.05 = 38,001.57/x
  3. Step 3: Cross multiply
    64,865.22x = 89,506.05 × 38,001.57
  4. Step 4: Simplify right side
    64,865.22x = 3,401,370,424.50
  5. Step 5: Solve for x
    x = 3,401,370,424.50/64,865.22
  6. Step 6: Final answer
    x = 52,437.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.