Home / 90,392.40-124,728.41-50,106.15

Finding the Fourth Proportional to 90,392.40, 124,728.41 and 50,106.15

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Solution

The fourth proportional to 90,392.40, 124,728.41 and 50,106.15 is: 69,139.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,392.40 : 124,728.41 = 50,106.15 : x
  2. Step 2: Convert to fraction form
    90,392.40/124,728.41 = 50,106.15/x
  3. Step 3: Cross multiply
    90,392.40x = 124,728.41 × 50,106.15
  4. Step 4: Simplify right side
    90,392.40x = 6,249,660,170.19
  5. Step 5: Solve for x
    x = 6,249,660,170.19/90,392.40
  6. Step 6: Final answer
    x = 69,139.22

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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.