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Finding the Fourth Proportional to 72,222.80, 108,334.20 and 61,624.40

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Solution

The fourth proportional to 72,222.80, 108,334.20 and 61,624.40 is: 92,436.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,222.80 : 108,334.20 = 61,624.40 : x
  2. Step 2: Convert to fraction form
    72,222.80/108,334.20 = 61,624.40/x
  3. Step 3: Cross multiply
    72,222.80x = 108,334.20 × 61,624.40
  4. Step 4: Simplify right side
    72,222.80x = 6,676,030,074.48
  5. Step 5: Solve for x
    x = 6,676,030,074.48/72,222.80
  6. Step 6: Final answer
    x = 92,436.60

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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.