Home / 43,148.76-64,730.52-19,777.20

Finding the Fourth Proportional to 43,148.76, 64,730.52 and 19,777.20

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Solution

The fourth proportional to 43,148.76, 64,730.52 and 19,777.20 is: 29,669.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,148.76 : 64,730.52 = 19,777.20 : x
  2. Step 2: Convert to fraction form
    43,148.76/64,730.52 = 19,777.20/x
  3. Step 3: Cross multiply
    43,148.76x = 64,730.52 × 19,777.20
  4. Step 4: Simplify right side
    43,148.76x = 1,280,188,440.14
  5. Step 5: Solve for x
    x = 1,280,188,440.14/43,148.76
  6. Step 6: Final answer
    x = 29,669.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.