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Finding the Fourth Proportional to 64,328.80, 88,772.40 and 35,648.20

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Solution

The fourth proportional to 64,328.80, 88,772.40 and 35,648.20 is: 49,193.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,328.80 : 88,772.40 = 35,648.20 : x
  2. Step 2: Convert to fraction form
    64,328.80/88,772.40 = 35,648.20/x
  3. Step 3: Cross multiply
    64,328.80x = 88,772.40 × 35,648.20
  4. Step 4: Simplify right side
    64,328.80x = 3,164,576,269.68
  5. Step 5: Solve for x
    x = 3,164,576,269.68/64,328.80
  6. Step 6: Final answer
    x = 49,193.77

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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.