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Finding the Fourth Proportional to 64,998.52, 97,490.22 and 18,255.40

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Solution

The fourth proportional to 64,998.52, 97,490.22 and 18,255.40 is: 27,380.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,998.52 : 97,490.22 = 18,255.40 : x
  2. Step 2: Convert to fraction form
    64,998.52/97,490.22 = 18,255.40/x
  3. Step 3: Cross multiply
    64,998.52x = 97,490.22 × 18,255.40
  4. Step 4: Simplify right side
    64,998.52x = 1,779,722,962.19
  5. Step 5: Solve for x
    x = 1,779,722,962.19/64,998.52
  6. Step 6: Final answer
    x = 27,380.98

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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.