Home / 61,621.12-91,947.65-57,859.48

Finding the Fourth Proportional to 61,621.12, 91,947.65 and 57,859.48

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Solution

The fourth proportional to 61,621.12, 91,947.65 and 57,859.48 is: 86,334.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,621.12 : 91,947.65 = 57,859.48 : x
  2. Step 2: Convert to fraction form
    61,621.12/91,947.65 = 57,859.48/x
  3. Step 3: Cross multiply
    61,621.12x = 91,947.65 × 57,859.48
  4. Step 4: Simplify right side
    61,621.12x = 5,320,043,216.22
  5. Step 5: Solve for x
    x = 5,320,043,216.22/61,621.12
  6. Step 6: Final answer
    x = 86,334.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.