Home / 72,476.10-100,015.56-40,655.25

Finding the Fourth Proportional to 72,476.10, 100,015.56 and 40,655.25

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Solution

The fourth proportional to 72,476.10, 100,015.56 and 40,655.25 is: 56,103.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,476.10 : 100,015.56 = 40,655.25 : x
  2. Step 2: Convert to fraction form
    72,476.10/100,015.56 = 40,655.25/x
  3. Step 3: Cross multiply
    72,476.10x = 100,015.56 × 40,655.25
  4. Step 4: Simplify right side
    72,476.10x = 4,066,157,595.69
  5. Step 5: Solve for x
    x = 4,066,157,595.69/72,476.10
  6. Step 6: Final answer
    x = 56,103.43

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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.