Home / 56,445.80-84,636.70-21,386.60

Finding the Fourth Proportional to 56,445.80, 84,636.70 and 21,386.60

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Solution

The fourth proportional to 56,445.80, 84,636.70 and 21,386.60 is: 32,067.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,445.80 : 84,636.70 = 21,386.60 : x
  2. Step 2: Convert to fraction form
    56,445.80/84,636.70 = 21,386.60/x
  3. Step 3: Cross multiply
    56,445.80x = 84,636.70 × 21,386.60
  4. Step 4: Simplify right side
    56,445.80x = 1,810,091,248.22
  5. Step 5: Solve for x
    x = 1,810,091,248.22/56,445.80
  6. Step 6: Final answer
    x = 32,067.78

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1.5x scale

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.