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Finding the Fourth Proportional to 63,430.68, 95,121.54 and 19,047

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Solution

The fourth proportional to 63,430.68, 95,121.54 and 19,047 is: 28,563.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,430.68 : 95,121.54 = 19,047 : x
  2. Step 2: Convert to fraction form
    63,430.68/95,121.54 = 19,047/x
  3. Step 3: Cross multiply
    63,430.68x = 95,121.54 × 19,047
  4. Step 4: Simplify right side
    63,430.68x = 1,811,779,972.38
  5. Step 5: Solve for x
    x = 1,811,779,972.38/63,430.68
  6. Step 6: Final answer
    x = 28,563.15

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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.