Home / 57,159.48-78,860.34-35,940.36

Finding the Fourth Proportional to 57,159.48, 78,860.34 and 35,940.36

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Solution

The fourth proportional to 57,159.48, 78,860.34 and 35,940.36 is: 49,585.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,159.48 : 78,860.34 = 35,940.36 : x
  2. Step 2: Convert to fraction form
    57,159.48/78,860.34 = 35,940.36/x
  3. Step 3: Cross multiply
    57,159.48x = 78,860.34 × 35,940.36
  4. Step 4: Simplify right side
    57,159.48x = 2,834,269,009.32
  5. Step 5: Solve for x
    x = 2,834,269,009.32/57,159.48
  6. Step 6: Final answer
    x = 49,585.28

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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.