Home / 72,088.11-99,478.53-40,256.46

Finding the Fourth Proportional to 72,088.11, 99,478.53 and 40,256.46

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Solution

The fourth proportional to 72,088.11, 99,478.53 and 40,256.46 is: 55,552.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,088.11 : 99,478.53 = 40,256.46 : x
  2. Step 2: Convert to fraction form
    72,088.11/99,478.53 = 40,256.46/x
  3. Step 3: Cross multiply
    72,088.11x = 99,478.53 × 40,256.46
  4. Step 4: Simplify right side
    72,088.11x = 4,004,653,463.80
  5. Step 5: Solve for x
    x = 4,004,653,463.80/72,088.11
  6. Step 6: Final answer
    x = 55,552.20

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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.