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Finding the Fourth Proportional to 51,057.08, 70,465.10 and 28,701.08

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Solution

The fourth proportional to 51,057.08, 70,465.10 and 28,701.08 is: 39,611.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,057.08 : 70,465.10 = 28,701.08 : x
  2. Step 2: Convert to fraction form
    51,057.08/70,465.10 = 28,701.08/x
  3. Step 3: Cross multiply
    51,057.08x = 70,465.10 × 28,701.08
  4. Step 4: Simplify right side
    51,057.08x = 2,022,424,472.31
  5. Step 5: Solve for x
    x = 2,022,424,472.31/51,057.08
  6. Step 6: Final answer
    x = 39,611.05

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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.