Home / 51,020.05-70,419.10-28,366.99

Finding the Fourth Proportional to 51,020.05, 70,419.10 and 28,366.99

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Solution

The fourth proportional to 51,020.05, 70,419.10 and 28,366.99 is: 39,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,020.05 : 70,419.10 = 28,366.99 : x
  2. Step 2: Convert to fraction form
    51,020.05/70,419.10 = 28,366.99/x
  3. Step 3: Cross multiply
    51,020.05x = 70,419.10 × 28,366.99
  4. Step 4: Simplify right side
    51,020.05x = 1,997,577,905.51
  5. Step 5: Solve for x
    x = 1,997,577,905.51/51,020.05
  6. Step 6: Final answer
    x = 39,152.80

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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.