Home / 72,531.15-100,102.95-40,701.93

Finding the Fourth Proportional to 72,531.15, 100,102.95 and 40,701.93

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Solution

The fourth proportional to 72,531.15, 100,102.95 and 40,701.93 is: 56,174.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,531.15 : 100,102.95 = 40,701.93 : x
  2. Step 2: Convert to fraction form
    72,531.15/100,102.95 = 40,701.93/x
  3. Step 3: Cross multiply
    72,531.15x = 100,102.95 × 40,701.93
  4. Step 4: Simplify right side
    72,531.15x = 4,074,383,263.69
  5. Step 5: Solve for x
    x = 4,074,383,263.69/72,531.15
  6. Step 6: Final answer
    x = 56,174.25

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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.