Home / 70,461.05-105,693.60-17,870.45

Finding the Fourth Proportional to 70,461.05, 105,693.60 and 17,870.45

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Solution

The fourth proportional to 70,461.05, 105,693.60 and 17,870.45 is: 26,806.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,461.05 : 105,693.60 = 17,870.45 : x
  2. Step 2: Convert to fraction form
    70,461.05/105,693.60 = 17,870.45/x
  3. Step 3: Cross multiply
    70,461.05x = 105,693.60 × 17,870.45
  4. Step 4: Simplify right side
    70,461.05x = 1,888,792,194.12
  5. Step 5: Solve for x
    x = 1,888,792,194.12/70,461.05
  6. Step 6: Final answer
    x = 26,806.19

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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.