Home / 90,392.78-124,728.93-50,106.53

Finding the Fourth Proportional to 90,392.78, 124,728.93 and 50,106.53

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Solution

The fourth proportional to 90,392.78, 124,728.93 and 50,106.53 is: 69,139.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,392.78 : 124,728.93 = 50,106.53 : x
  2. Step 2: Convert to fraction form
    90,392.78/124,728.93 = 50,106.53/x
  3. Step 3: Cross multiply
    90,392.78x = 124,728.93 × 50,106.53
  4. Step 4: Simplify right side
    90,392.78x = 6,249,734,184.74
  5. Step 5: Solve for x
    x = 6,249,734,184.74/90,392.78
  6. Step 6: Final answer
    x = 69,139.75

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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.