Home / 57,085.20-78,852.86-43,820.36

Finding the Fourth Proportional to 57,085.20, 78,852.86 and 43,820.36

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Solution

The fourth proportional to 57,085.20, 78,852.86 and 43,820.36 is: 60,529.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,085.20 : 78,852.86 = 43,820.36 : x
  2. Step 2: Convert to fraction form
    57,085.20/78,852.86 = 43,820.36/x
  3. Step 3: Cross multiply
    57,085.20x = 78,852.86 × 43,820.36
  4. Step 4: Simplify right side
    57,085.20x = 3,455,360,712.23
  5. Step 5: Solve for x
    x = 3,455,360,712.23/57,085.20
  6. Step 6: Final answer
    x = 60,529.89

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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.