Home / 51,074.61-70,489.19-30,938.52

Finding the Fourth Proportional to 51,074.61, 70,489.19 and 30,938.52

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Solution

The fourth proportional to 51,074.61, 70,489.19 and 30,938.52 is: 42,698.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,074.61 : 70,489.19 = 30,938.52 : x
  2. Step 2: Convert to fraction form
    51,074.61/70,489.19 = 30,938.52/x
  3. Step 3: Cross multiply
    51,074.61x = 70,489.19 × 30,938.52
  4. Step 4: Simplify right side
    51,074.61x = 2,180,831,214.60
  5. Step 5: Solve for x
    x = 2,180,831,214.60/51,074.61
  6. Step 6: Final answer
    x = 42,698.93

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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.