Home / 52,205.04-78,320.52-21,062.16

Finding the Fourth Proportional to 52,205.04, 78,320.52 and 21,062.16

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Solution

The fourth proportional to 52,205.04, 78,320.52 and 21,062.16 is: 31,598.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,205.04 : 78,320.52 = 21,062.16 : x
  2. Step 2: Convert to fraction form
    52,205.04/78,320.52 = 21,062.16/x
  3. Step 3: Cross multiply
    52,205.04x = 78,320.52 × 21,062.16
  4. Step 4: Simplify right side
    52,205.04x = 1,649,599,323.52
  5. Step 5: Solve for x
    x = 1,649,599,323.52/52,205.04
  6. Step 6: Final answer
    x = 31,598.47

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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.