Home / 51,019.08-70,405.88-28,357.50

Finding the Fourth Proportional to 51,019.08, 70,405.88 and 28,357.50

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Solution

The fourth proportional to 51,019.08, 70,405.88 and 28,357.50 is: 39,133.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,019.08 : 70,405.88 = 28,357.50 : x
  2. Step 2: Convert to fraction form
    51,019.08/70,405.88 = 28,357.50/x
  3. Step 3: Cross multiply
    51,019.08x = 70,405.88 × 28,357.50
  4. Step 4: Simplify right side
    51,019.08x = 1,996,534,600.31
  5. Step 5: Solve for x
    x = 1,996,534,600.31/51,019.08
  6. Step 6: Final answer
    x = 39,133.10

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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.