Home / 69,881.04-104,865.36-28,328.16

Finding the Fourth Proportional to 69,881.04, 104,865.36 and 28,328.16

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Solution

The fourth proportional to 69,881.04, 104,865.36 and 28,328.16 is: 42,510.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,881.04 : 104,865.36 = 28,328.16 : x
  2. Step 2: Convert to fraction form
    69,881.04/104,865.36 = 28,328.16/x
  3. Step 3: Cross multiply
    69,881.04x = 104,865.36 × 28,328.16
  4. Step 4: Simplify right side
    69,881.04x = 2,970,642,696.54
  5. Step 5: Solve for x
    x = 2,970,642,696.54/69,881.04
  6. Step 6: Final answer
    x = 42,510.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.