Home / 90,387.09-124,735.05-50,101.74

Finding the Fourth Proportional to 90,387.09, 124,735.05 and 50,101.74

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Solution

The fourth proportional to 90,387.09, 124,735.05 and 50,101.74 is: 69,140.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,387.09 : 124,735.05 = 50,101.74 : x
  2. Step 2: Convert to fraction form
    90,387.09/124,735.05 = 50,101.74/x
  3. Step 3: Cross multiply
    90,387.09x = 124,735.05 × 50,101.74
  4. Step 4: Simplify right side
    90,387.09x = 6,249,443,043.99
  5. Step 5: Solve for x
    x = 6,249,443,043.99/90,387.09
  6. Step 6: Final answer
    x = 69,140.88

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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.