Home / 90,274.23-124,569.74-53,968.50

Finding the Fourth Proportional to 90,274.23, 124,569.74 and 53,968.50

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Solution

The fourth proportional to 90,274.23, 124,569.74 and 53,968.50 is: 74,471.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,274.23 : 124,569.74 = 53,968.50 : x
  2. Step 2: Convert to fraction form
    90,274.23/124,569.74 = 53,968.50/x
  3. Step 3: Cross multiply
    90,274.23x = 124,569.74 × 53,968.50
  4. Step 4: Simplify right side
    90,274.23x = 6,722,841,390.34
  5. Step 5: Solve for x
    x = 6,722,841,390.34/90,274.23
  6. Step 6: Final answer
    x = 74,471.33

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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.