Home / 56,859.36-78,570.18-54,128.04

Finding the Fourth Proportional to 56,859.36, 78,570.18 and 54,128.04

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Solution

The fourth proportional to 56,859.36, 78,570.18 and 54,128.04 is: 74,795.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,859.36 : 78,570.18 = 54,128.04 : x
  2. Step 2: Convert to fraction form
    56,859.36/78,570.18 = 54,128.04/x
  3. Step 3: Cross multiply
    56,859.36x = 78,570.18 × 54,128.04
  4. Step 4: Simplify right side
    56,859.36x = 4,252,849,845.85
  5. Step 5: Solve for x
    x = 4,252,849,845.85/56,859.36
  6. Step 6: Final answer
    x = 74,795.95

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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.