Home / 48,339.90-72,507-28,743.18

Finding the Fourth Proportional to 48,339.90, 72,507 and 28,743.18

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Solution

The fourth proportional to 48,339.90, 72,507 and 28,743.18 is: 43,113.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,339.90 : 72,507 = 28,743.18 : x
  2. Step 2: Convert to fraction form
    48,339.90/72,507 = 28,743.18/x
  3. Step 3: Cross multiply
    48,339.90x = 72,507 × 28,743.18
  4. Step 4: Simplify right side
    48,339.90x = 2,084,081,752.26
  5. Step 5: Solve for x
    x = 2,084,081,752.26/48,339.90
  6. Step 6: Final answer
    x = 43,113.08

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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.