Home / 90,417.51-124,775.55-50,131.28

Finding the Fourth Proportional to 90,417.51, 124,775.55 and 50,131.28

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Solution

The fourth proportional to 90,417.51, 124,775.55 and 50,131.28 is: 69,180.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,417.51 : 124,775.55 = 50,131.28 : x
  2. Step 2: Convert to fraction form
    90,417.51/124,775.55 = 50,131.28/x
  3. Step 3: Cross multiply
    90,417.51x = 124,775.55 × 50,131.28
  4. Step 4: Simplify right side
    90,417.51x = 6,255,157,410.33
  5. Step 5: Solve for x
    x = 6,255,157,410.33/90,417.51
  6. Step 6: Final answer
    x = 69,180.82

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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.