Home / 64,956.20-97,434.30-42,405.80

Finding the Fourth Proportional to 64,956.20, 97,434.30 and 42,405.80

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Solution

The fourth proportional to 64,956.20, 97,434.30 and 42,405.80 is: 63,608.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,956.20 : 97,434.30 = 42,405.80 : x
  2. Step 2: Convert to fraction form
    64,956.20/97,434.30 = 42,405.80/x
  3. Step 3: Cross multiply
    64,956.20x = 97,434.30 × 42,405.80
  4. Step 4: Simplify right side
    64,956.20x = 4,131,779,438.94
  5. Step 5: Solve for x
    x = 4,131,779,438.94/64,956.20
  6. Step 6: Final answer
    x = 63,608.70

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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.