Home / 90,569.04-124,989.30-50,283.36

Finding the Fourth Proportional to 90,569.04, 124,989.30 and 50,283.36

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Solution

The fourth proportional to 90,569.04, 124,989.30 and 50,283.36 is: 69,393.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,569.04 : 124,989.30 = 50,283.36 : x
  2. Step 2: Convert to fraction form
    90,569.04/124,989.30 = 50,283.36/x
  3. Step 3: Cross multiply
    90,569.04x = 124,989.30 × 50,283.36
  4. Step 4: Simplify right side
    90,569.04x = 6,284,881,968.05
  5. Step 5: Solve for x
    x = 6,284,881,968.05/90,569.04
  6. Step 6: Final answer
    x = 69,393.27

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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.