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Finding the Fourth Proportional to 64,815.40, 97,244.70 and 57,847.40

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Solution

The fourth proportional to 64,815.40, 97,244.70 and 57,847.40 is: 86,790.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,815.40 : 97,244.70 = 57,847.40 : x
  2. Step 2: Convert to fraction form
    64,815.40/97,244.70 = 57,847.40/x
  3. Step 3: Cross multiply
    64,815.40x = 97,244.70 × 57,847.40
  4. Step 4: Simplify right side
    64,815.40x = 5,625,353,058.78
  5. Step 5: Solve for x
    x = 5,625,353,058.78/64,815.40
  6. Step 6: Final answer
    x = 86,790.38

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1.5x scale

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.