Home / 104,578.50-144,319.25-56,831.85

Finding the Fourth Proportional to 104,578.50, 144,319.25 and 56,831.85

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Solution

The fourth proportional to 104,578.50, 144,319.25 and 56,831.85 is: 78,428.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,578.50 : 144,319.25 = 56,831.85 : x
  2. Step 2: Convert to fraction form
    104,578.50/144,319.25 = 56,831.85/x
  3. Step 3: Cross multiply
    104,578.50x = 144,319.25 × 56,831.85
  4. Step 4: Simplify right side
    104,578.50x = 8,201,930,110.19
  5. Step 5: Solve for x
    x = 8,201,930,110.19/104,578.50
  6. Step 6: Final answer
    x = 78,428.45

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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.