Home / 70,133.45-105,032.19-51,107.08

Finding the Fourth Proportional to 70,133.45, 105,032.19 and 51,107.08

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Solution

The fourth proportional to 70,133.45, 105,032.19 and 51,107.08 is: 76,538.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,133.45 : 105,032.19 = 51,107.08 : x
  2. Step 2: Convert to fraction form
    70,133.45/105,032.19 = 51,107.08/x
  3. Step 3: Cross multiply
    70,133.45x = 105,032.19 × 51,107.08
  4. Step 4: Simplify right side
    70,133.45x = 5,367,888,367.51
  5. Step 5: Solve for x
    x = 5,367,888,367.51/70,133.45
  6. Step 6: Final answer
    x = 76,538.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.