Home / 72,263.27-99,728.21-40,435.13

Finding the Fourth Proportional to 72,263.27, 99,728.21 and 40,435.13

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Solution

The fourth proportional to 72,263.27, 99,728.21 and 40,435.13 is: 55,803.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,263.27 : 99,728.21 = 40,435.13 : x
  2. Step 2: Convert to fraction form
    72,263.27/99,728.21 = 40,435.13/x
  3. Step 3: Cross multiply
    72,263.27x = 99,728.21 × 40,435.13
  4. Step 4: Simplify right side
    72,263.27x = 4,032,523,136.02
  5. Step 5: Solve for x
    x = 4,032,523,136.02/72,263.27
  6. Step 6: Final answer
    x = 55,803.22

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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.