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Finding the Fourth Proportional to 72,351.10, 108,520.32 and 22,430.08

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Solution

The fourth proportional to 72,351.10, 108,520.32 and 22,430.08 is: 33,643.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,351.10 : 108,520.32 = 22,430.08 : x
  2. Step 2: Convert to fraction form
    72,351.10/108,520.32 = 22,430.08/x
  3. Step 3: Cross multiply
    72,351.10x = 108,520.32 × 22,430.08
  4. Step 4: Simplify right side
    72,351.10x = 2,434,119,459.23
  5. Step 5: Solve for x
    x = 2,434,119,459.23/72,351.10
  6. Step 6: Final answer
    x = 33,643.16

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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.