Home / 56,720.76-78,190.71-36,300.57

Finding the Fourth Proportional to 56,720.76, 78,190.71 and 36,300.57

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Solution

The fourth proportional to 56,720.76, 78,190.71 and 36,300.57 is: 50,041.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,720.76 : 78,190.71 = 36,300.57 : x
  2. Step 2: Convert to fraction form
    56,720.76/78,190.71 = 36,300.57/x
  3. Step 3: Cross multiply
    56,720.76x = 78,190.71 × 36,300.57
  4. Step 4: Simplify right side
    56,720.76x = 2,838,367,341.70
  5. Step 5: Solve for x
    x = 2,838,367,341.70/56,720.76
  6. Step 6: Final answer
    x = 50,041.07

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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.