Home / 104,557.86-144,289.51-56,811.40

Finding the Fourth Proportional to 104,557.86, 144,289.51 and 56,811.40

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Solution

The fourth proportional to 104,557.86, 144,289.51 and 56,811.40 is: 78,399.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,557.86 : 144,289.51 = 56,811.40 : x
  2. Step 2: Convert to fraction form
    104,557.86/144,289.51 = 56,811.40/x
  3. Step 3: Cross multiply
    104,557.86x = 144,289.51 × 56,811.40
  4. Step 4: Simplify right side
    104,557.86x = 8,197,288,565.66
  5. Step 5: Solve for x
    x = 8,197,288,565.66/104,557.86
  6. Step 6: Final answer
    x = 78,399.54

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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.