Home / 90,509.49-124,897.08-50,220.69

Finding the Fourth Proportional to 90,509.49, 124,897.08 and 50,220.69

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Solution

The fourth proportional to 90,509.49, 124,897.08 and 50,220.69 is: 69,301.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,509.49 : 124,897.08 = 50,220.69 : x
  2. Step 2: Convert to fraction form
    90,509.49/124,897.08 = 50,220.69/x
  3. Step 3: Cross multiply
    90,509.49x = 124,897.08 × 50,220.69
  4. Step 4: Simplify right side
    90,509.49x = 6,272,417,536.59
  5. Step 5: Solve for x
    x = 6,272,417,536.59/90,509.49
  6. Step 6: Final answer
    x = 69,301.21

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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.