Home / 72,649.74-100,301.36-57,603.18

Finding the Fourth Proportional to 72,649.74, 100,301.36 and 57,603.18

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Solution

The fourth proportional to 72,649.74, 100,301.36 and 57,603.18 is: 79,527.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,649.74 : 100,301.36 = 57,603.18 : x
  2. Step 2: Convert to fraction form
    72,649.74/100,301.36 = 57,603.18/x
  3. Step 3: Cross multiply
    72,649.74x = 100,301.36 × 57,603.18
  4. Step 4: Simplify right side
    72,649.74x = 5,777,677,294.32
  5. Step 5: Solve for x
    x = 5,777,677,294.32/72,649.74
  6. Step 6: Final answer
    x = 79,527.85

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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.