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Finding the Fourth Proportional to 72,283.50, 108,430.92 and 19,695.06

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Solution

The fourth proportional to 72,283.50, 108,430.92 and 19,695.06 is: 29,544.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,283.50 : 108,430.92 = 19,695.06 : x
  2. Step 2: Convert to fraction form
    72,283.50/108,430.92 = 19,695.06/x
  3. Step 3: Cross multiply
    72,283.50x = 108,430.92 × 19,695.06
  4. Step 4: Simplify right side
    72,283.50x = 2,135,553,475.26
  5. Step 5: Solve for x
    x = 2,135,553,475.26/72,283.50
  6. Step 6: Final answer
    x = 29,544.13

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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.