Home / 105,595.20-145,721.54-57,847.50

Finding the Fourth Proportional to 105,595.20, 145,721.54 and 57,847.50

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Solution

The fourth proportional to 105,595.20, 145,721.54 and 57,847.50 is: 79,829.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,595.20 : 145,721.54 = 57,847.50 : x
  2. Step 2: Convert to fraction form
    105,595.20/145,721.54 = 57,847.50/x
  3. Step 3: Cross multiply
    105,595.20x = 145,721.54 × 57,847.50
  4. Step 4: Simplify right side
    105,595.20x = 8,429,626,785.15
  5. Step 5: Solve for x
    x = 8,429,626,785.15/105,595.20
  6. Step 6: Final answer
    x = 79,829.64

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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.