Home / 51,315.33-70,808.90-28,655.58

Finding the Fourth Proportional to 51,315.33, 70,808.90 and 28,655.58

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Solution

The fourth proportional to 51,315.33, 70,808.90 and 28,655.58 is: 39,541.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,315.33 : 70,808.90 = 28,655.58 : x
  2. Step 2: Convert to fraction form
    51,315.33/70,808.90 = 28,655.58/x
  3. Step 3: Cross multiply
    51,315.33x = 70,808.90 × 28,655.58
  4. Step 4: Simplify right side
    51,315.33x = 2,029,070,098.66
  5. Step 5: Solve for x
    x = 2,029,070,098.66/51,315.33
  6. Step 6: Final answer
    x = 39,541.21

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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.