Home / 72,433.45-108,622.86-30,316.45

Finding the Fourth Proportional to 72,433.45, 108,622.86 and 30,316.45

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Solution

The fourth proportional to 72,433.45, 108,622.86 and 30,316.45 is: 45,463.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,433.45 : 108,622.86 = 30,316.45 : x
  2. Step 2: Convert to fraction form
    72,433.45/108,622.86 = 30,316.45/x
  3. Step 3: Cross multiply
    72,433.45x = 108,622.86 × 30,316.45
  4. Step 4: Simplify right side
    72,433.45x = 3,293,058,960.93
  5. Step 5: Solve for x
    x = 3,293,058,960.93/72,433.45
  6. Step 6: Final answer
    x = 45,463.24

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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.