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Finding the Fourth Proportional to 64,874.40, 89,527.32 and 38,032.80

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Solution

The fourth proportional to 64,874.40, 89,527.32 and 38,032.80 is: 52,485.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,874.40 : 89,527.32 = 38,032.80 : x
  2. Step 2: Convert to fraction form
    64,874.40/89,527.32 = 38,032.80/x
  3. Step 3: Cross multiply
    64,874.40x = 89,527.32 × 38,032.80
  4. Step 4: Simplify right side
    64,874.40x = 3,404,974,656.10
  5. Step 5: Solve for x
    x = 3,404,974,656.10/64,874.40
  6. Step 6: Final answer
    x = 52,485.64

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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.