Home / 51,015.68-70,435.93-45,621.33

Finding the Fourth Proportional to 51,015.68, 70,435.93 and 45,621.33

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Solution

The fourth proportional to 51,015.68, 70,435.93 and 45,621.33 is: 62,988.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,015.68 : 70,435.93 = 45,621.33 : x
  2. Step 2: Convert to fraction form
    51,015.68/70,435.93 = 45,621.33/x
  3. Step 3: Cross multiply
    51,015.68x = 70,435.93 × 45,621.33
  4. Step 4: Simplify right side
    51,015.68x = 3,213,380,806.39
  5. Step 5: Solve for x
    x = 3,213,380,806.39/51,015.68
  6. Step 6: Final answer
    x = 62,988.10

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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.