Home / 72,220.86-99,791.73-62,586.72

Finding the Fourth Proportional to 72,220.86, 99,791.73 and 62,586.72

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Solution

The fourth proportional to 72,220.86, 99,791.73 and 62,586.72 is: 86,479.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,220.86 : 99,791.73 = 62,586.72 : x
  2. Step 2: Convert to fraction form
    72,220.86/99,791.73 = 62,586.72/x
  3. Step 3: Cross multiply
    72,220.86x = 99,791.73 × 62,586.72
  4. Step 4: Simplify right side
    72,220.86x = 6,245,637,063.83
  5. Step 5: Solve for x
    x = 6,245,637,063.83/72,220.86
  6. Step 6: Final answer
    x = 86,479.68

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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.