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Finding the Fourth Proportional to 64,280.64, 88,715.21 and 38,801.63

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Solution

The fourth proportional to 64,280.64, 88,715.21 and 38,801.63 is: 53,551.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,280.64 : 88,715.21 = 38,801.63 : x
  2. Step 2: Convert to fraction form
    64,280.64/88,715.21 = 38,801.63/x
  3. Step 3: Cross multiply
    64,280.64x = 88,715.21 × 38,801.63
  4. Step 4: Simplify right side
    64,280.64x = 3,442,294,116.21
  5. Step 5: Solve for x
    x = 3,442,294,116.21/64,280.64
  6. Step 6: Final answer
    x = 53,551.02

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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.