Home / 70,749.18-106,095.22-28,621.49

Finding the Fourth Proportional to 70,749.18, 106,095.22 and 28,621.49

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Solution

The fourth proportional to 70,749.18, 106,095.22 and 28,621.49 is: 42,920.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,749.18 : 106,095.22 = 28,621.49 : x
  2. Step 2: Convert to fraction form
    70,749.18/106,095.22 = 28,621.49/x
  3. Step 3: Cross multiply
    70,749.18x = 106,095.22 × 28,621.49
  4. Step 4: Simplify right side
    70,749.18x = 3,036,602,676.25
  5. Step 5: Solve for x
    x = 3,036,602,676.25/70,749.18
  6. Step 6: Final answer
    x = 42,920.68

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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.