Home / 84,199.47-126,256.95-28,019.76

Finding the Fourth Proportional to 84,199.47, 126,256.95 and 28,019.76

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Solution

The fourth proportional to 84,199.47, 126,256.95 and 28,019.76 is: 42,015.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,199.47 : 126,256.95 = 28,019.76 : x
  2. Step 2: Convert to fraction form
    84,199.47/126,256.95 = 28,019.76/x
  3. Step 3: Cross multiply
    84,199.47x = 126,256.95 × 28,019.76
  4. Step 4: Simplify right side
    84,199.47x = 3,537,689,437.33
  5. Step 5: Solve for x
    x = 3,537,689,437.33/84,199.47
  6. Step 6: Final answer
    x = 42,015.58

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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.