Home / 85,487.64-128,237.40-32,897.04

Finding the Fourth Proportional to 85,487.64, 128,237.40 and 32,897.04

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Solution

The fourth proportional to 85,487.64, 128,237.40 and 32,897.04 is: 49,347.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,487.64 : 128,237.40 = 32,897.04 : x
  2. Step 2: Convert to fraction form
    85,487.64/128,237.40 = 32,897.04/x
  3. Step 3: Cross multiply
    85,487.64x = 128,237.40 × 32,897.04
  4. Step 4: Simplify right side
    85,487.64x = 4,218,630,877.30
  5. Step 5: Solve for x
    x = 4,218,630,877.30/85,487.64
  6. Step 6: Final answer
    x = 49,347.85

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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.