Home / 72,328.23-99,811.98-40,497.12

Finding the Fourth Proportional to 72,328.23, 99,811.98 and 40,497.12

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Solution

The fourth proportional to 72,328.23, 99,811.98 and 40,497.12 is: 55,885.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,328.23 : 99,811.98 = 40,497.12 : x
  2. Step 2: Convert to fraction form
    72,328.23/99,811.98 = 40,497.12/x
  3. Step 3: Cross multiply
    72,328.23x = 99,811.98 × 40,497.12
  4. Step 4: Simplify right side
    72,328.23x = 4,042,097,731.50
  5. Step 5: Solve for x
    x = 4,042,097,731.50/72,328.23
  6. Step 6: Final answer
    x = 55,885.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.