Home / 45,159.69-67,741.70-21,805.77

Finding the Fourth Proportional to 45,159.69, 67,741.70 and 21,805.77

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Solution

The fourth proportional to 45,159.69, 67,741.70 and 21,805.77 is: 32,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,159.69 : 67,741.70 = 21,805.77 : x
  2. Step 2: Convert to fraction form
    45,159.69/67,741.70 = 21,805.77/x
  3. Step 3: Cross multiply
    45,159.69x = 67,741.70 × 21,805.77
  4. Step 4: Simplify right side
    45,159.69x = 1,477,159,820.58
  5. Step 5: Solve for x
    x = 1,477,159,820.58/45,159.69
  6. Step 6: Final answer
    x = 32,709.70

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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.