Home / 56,643.12-78,153.60-33,983.76

Finding the Fourth Proportional to 56,643.12, 78,153.60 and 33,983.76

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Solution

The fourth proportional to 56,643.12, 78,153.60 and 33,983.76 is: 46,889.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,643.12 : 78,153.60 = 33,983.76 : x
  2. Step 2: Convert to fraction form
    56,643.12/78,153.60 = 33,983.76/x
  3. Step 3: Cross multiply
    56,643.12x = 78,153.60 × 33,983.76
  4. Step 4: Simplify right side
    56,643.12x = 2,655,953,185.54
  5. Step 5: Solve for x
    x = 2,655,953,185.54/56,643.12
  6. Step 6: Final answer
    x = 46,889.25

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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.