Home / 90,259.09-124,562.13-49,977.28

Finding the Fourth Proportional to 90,259.09, 124,562.13 and 49,977.28

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Solution

The fourth proportional to 90,259.09, 124,562.13 and 49,977.28 is: 68,971.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,259.09 : 124,562.13 = 49,977.28 : x
  2. Step 2: Convert to fraction form
    90,259.09/124,562.13 = 49,977.28/x
  3. Step 3: Cross multiply
    90,259.09x = 124,562.13 × 49,977.28
  4. Step 4: Simplify right side
    90,259.09x = 6,225,276,448.41
  5. Step 5: Solve for x
    x = 6,225,276,448.41/90,259.09
  6. Step 6: Final answer
    x = 68,971.19

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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.