Home / 90,392.31-124,728.30-50,106.06

Finding the Fourth Proportional to 90,392.31, 124,728.30 and 50,106.06

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Solution

The fourth proportional to 90,392.31, 124,728.30 and 50,106.06 is: 69,139.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,392.31 : 124,728.30 = 50,106.06 : x
  2. Step 2: Convert to fraction form
    90,392.31/124,728.30 = 50,106.06/x
  3. Step 3: Cross multiply
    90,392.31x = 124,728.30 × 50,106.06
  4. Step 4: Simplify right side
    90,392.31x = 6,249,643,683.50
  5. Step 5: Solve for x
    x = 6,249,643,683.50/90,392.31
  6. Step 6: Final answer
    x = 69,139.11

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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.