Home / 90,011.05-124,210.42-51,764.51

Finding the Fourth Proportional to 90,011.05, 124,210.42 and 51,764.51

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Solution

The fourth proportional to 90,011.05, 124,210.42 and 51,764.51 is: 71,432.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,011.05 : 124,210.42 = 51,764.51 : x
  2. Step 2: Convert to fraction form
    90,011.05/124,210.42 = 51,764.51/x
  3. Step 3: Cross multiply
    90,011.05x = 124,210.42 × 51,764.51
  4. Step 4: Simplify right side
    90,011.05x = 6,429,691,709.31
  5. Step 5: Solve for x
    x = 6,429,691,709.31/90,011.05
  6. Step 6: Final answer
    x = 71,432.25

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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.