Home / 53,007.60-79,511.40-36,418.80

Finding the Fourth Proportional to 53,007.60, 79,511.40 and 36,418.80

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Solution

The fourth proportional to 53,007.60, 79,511.40 and 36,418.80 is: 54,628.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,007.60 : 79,511.40 = 36,418.80 : x
  2. Step 2: Convert to fraction form
    53,007.60/79,511.40 = 36,418.80/x
  3. Step 3: Cross multiply
    53,007.60x = 79,511.40 × 36,418.80
  4. Step 4: Simplify right side
    53,007.60x = 2,895,709,774.32
  5. Step 5: Solve for x
    x = 2,895,709,774.32/53,007.60
  6. Step 6: Final answer
    x = 54,628.20

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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.