Home / 57,213.20-78,875.16-35,980.40

Finding the Fourth Proportional to 57,213.20, 78,875.16 and 35,980.40

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Solution

The fourth proportional to 57,213.20, 78,875.16 and 35,980.40 is: 49,603.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,213.20 : 78,875.16 = 35,980.40 : x
  2. Step 2: Convert to fraction form
    57,213.20/78,875.16 = 35,980.40/x
  3. Step 3: Cross multiply
    57,213.20x = 78,875.16 × 35,980.40
  4. Step 4: Simplify right side
    57,213.20x = 2,837,959,806.86
  5. Step 5: Solve for x
    x = 2,837,959,806.86/57,213.20
  6. Step 6: Final answer
    x = 49,603.24

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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.