Home / 77,513.64-106,895.34-50,679.15

Finding the Fourth Proportional to 77,513.64, 106,895.34 and 50,679.15

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Solution

The fourth proportional to 77,513.64, 106,895.34 and 50,679.15 is: 69,889.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,513.64 : 106,895.34 = 50,679.15 : x
  2. Step 2: Convert to fraction form
    77,513.64/106,895.34 = 50,679.15/x
  3. Step 3: Cross multiply
    77,513.64x = 106,895.34 × 50,679.15
  4. Step 4: Simplify right side
    77,513.64x = 5,417,364,970.16
  5. Step 5: Solve for x
    x = 5,417,364,970.16/77,513.64
  6. Step 6: Final answer
    x = 69,889.18

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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.