Home / 72,661.36-100,282.07-40,830.26

Finding the Fourth Proportional to 72,661.36, 100,282.07 and 40,830.26

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Solution

The fourth proportional to 72,661.36, 100,282.07 and 40,830.26 is: 56,351.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,661.36 : 100,282.07 = 40,830.26 : x
  2. Step 2: Convert to fraction form
    72,661.36/100,282.07 = 40,830.26/x
  3. Step 3: Cross multiply
    72,661.36x = 100,282.07 × 40,830.26
  4. Step 4: Simplify right side
    72,661.36x = 4,094,543,156.19
  5. Step 5: Solve for x
    x = 4,094,543,156.19/72,661.36
  6. Step 6: Final answer
    x = 56,351.04

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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.