Home / 52,159.79-78,205.12-18,875.52

Finding the Fourth Proportional to 52,159.79, 78,205.12 and 18,875.52

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Solution

The fourth proportional to 52,159.79, 78,205.12 and 18,875.52 is: 28,300.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,159.79 : 78,205.12 = 18,875.52 : x
  2. Step 2: Convert to fraction form
    52,159.79/78,205.12 = 18,875.52/x
  3. Step 3: Cross multiply
    52,159.79x = 78,205.12 × 18,875.52
  4. Step 4: Simplify right side
    52,159.79x = 1,476,162,259.47
  5. Step 5: Solve for x
    x = 1,476,162,259.47/52,159.79
  6. Step 6: Final answer
    x = 28,300.77

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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.