Home / 56,764.69-78,335.29-32,905.21

Finding the Fourth Proportional to 56,764.69, 78,335.29 and 32,905.21

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Solution

The fourth proportional to 56,764.69, 78,335.29 and 32,905.21 is: 45,409.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,764.69 : 78,335.29 = 32,905.21 : x
  2. Step 2: Convert to fraction form
    56,764.69/78,335.29 = 32,905.21/x
  3. Step 3: Cross multiply
    56,764.69x = 78,335.29 × 32,905.21
  4. Step 4: Simplify right side
    56,764.69x = 2,577,639,167.86
  5. Step 5: Solve for x
    x = 2,577,639,167.86/56,764.69
  6. Step 6: Final answer
    x = 45,409.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.