Home / 72,801.12-100,212.84-62,762.76

Finding the Fourth Proportional to 72,801.12, 100,212.84 and 62,762.76

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Solution

The fourth proportional to 72,801.12, 100,212.84 and 62,762.76 is: 86,394.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,801.12 : 100,212.84 = 62,762.76 : x
  2. Step 2: Convert to fraction form
    72,801.12/100,212.84 = 62,762.76/x
  3. Step 3: Cross multiply
    72,801.12x = 100,212.84 × 62,762.76
  4. Step 4: Simplify right side
    72,801.12x = 6,289,634,425.84
  5. Step 5: Solve for x
    x = 6,289,634,425.84/72,801.12
  6. Step 6: Final answer
    x = 86,394.75

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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.