Home / 51,109.06-70,530.51-28,447.57

Finding the Fourth Proportional to 51,109.06, 70,530.51 and 28,447.57

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Solution

The fourth proportional to 51,109.06, 70,530.51 and 28,447.57 is: 39,257.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,109.06 : 70,530.51 = 28,447.57 : x
  2. Step 2: Convert to fraction form
    51,109.06/70,530.51 = 28,447.57/x
  3. Step 3: Cross multiply
    51,109.06x = 70,530.51 × 28,447.57
  4. Step 4: Simplify right side
    51,109.06x = 2,006,421,510.16
  5. Step 5: Solve for x
    x = 2,006,421,510.16/51,109.06
  6. Step 6: Final answer
    x = 39,257.65

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1.5x scale

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.