Home / 90,415.15-124,772.94-50,129.41

Finding the Fourth Proportional to 90,415.15, 124,772.94 and 50,129.41

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Solution

The fourth proportional to 90,415.15, 124,772.94 and 50,129.41 is: 69,178.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,415.15 : 124,772.94 = 50,129.41 : x
  2. Step 2: Convert to fraction form
    90,415.15/124,772.94 = 50,129.41/x
  3. Step 3: Cross multiply
    90,415.15x = 124,772.94 × 50,129.41
  4. Step 4: Simplify right side
    90,415.15x = 6,254,793,866.17
  5. Step 5: Solve for x
    x = 6,254,793,866.17/90,415.15
  6. Step 6: Final answer
    x = 69,178.60

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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.