Home / 56,330.60-84,443.10-21,293.80

Finding the Fourth Proportional to 56,330.60, 84,443.10 and 21,293.80

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Solution

The fourth proportional to 56,330.60, 84,443.10 and 21,293.80 is: 31,920.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,330.60 : 84,443.10 = 21,293.80 : x
  2. Step 2: Convert to fraction form
    56,330.60/84,443.10 = 21,293.80/x
  3. Step 3: Cross multiply
    56,330.60x = 84,443.10 × 21,293.80
  4. Step 4: Simplify right side
    56,330.60x = 1,798,114,482.78
  5. Step 5: Solve for x
    x = 1,798,114,482.78/56,330.60
  6. Step 6: Final answer
    x = 31,920.74

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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.