Home / 72,056.86-99,409.89-48,145.66

Finding the Fourth Proportional to 72,056.86, 99,409.89 and 48,145.66

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Solution

The fourth proportional to 72,056.86, 99,409.89 and 48,145.66 is: 66,421.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,056.86 : 99,409.89 = 48,145.66 : x
  2. Step 2: Convert to fraction form
    72,056.86/99,409.89 = 48,145.66/x
  3. Step 3: Cross multiply
    72,056.86x = 99,409.89 × 48,145.66
  4. Step 4: Simplify right side
    72,056.86x = 4,786,154,764.58
  5. Step 5: Solve for x
    x = 4,786,154,764.58/72,056.86
  6. Step 6: Final answer
    x = 66,421.92

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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.