Home / 90,390.39-124,725.65-50,104.14

Finding the Fourth Proportional to 90,390.39, 124,725.65 and 50,104.14

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Solution

The fourth proportional to 90,390.39, 124,725.65 and 50,104.14 is: 69,136.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,390.39 : 124,725.65 = 50,104.14 : x
  2. Step 2: Convert to fraction form
    90,390.39/124,725.65 = 50,104.14/x
  3. Step 3: Cross multiply
    90,390.39x = 124,725.65 × 50,104.14
  4. Step 4: Simplify right side
    90,390.39x = 6,249,271,429.19
  5. Step 5: Solve for x
    x = 6,249,271,429.19/90,390.39
  6. Step 6: Final answer
    x = 69,136.46

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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.