Home / 70,629.17-105,902.23-28,510.62

Finding the Fourth Proportional to 70,629.17, 105,902.23 and 28,510.62

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Solution

The fourth proportional to 70,629.17, 105,902.23 and 28,510.62 is: 42,749.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,629.17 : 105,902.23 = 28,510.62 : x
  2. Step 2: Convert to fraction form
    70,629.17/105,902.23 = 28,510.62/x
  3. Step 3: Cross multiply
    70,629.17x = 105,902.23 × 28,510.62
  4. Step 4: Simplify right side
    70,629.17x = 3,019,338,248.46
  5. Step 5: Solve for x
    x = 3,019,338,248.46/70,629.17
  6. Step 6: Final answer
    x = 42,749.17

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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.