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Finding the Fourth Proportional to 84,643.64, 116,727.62 and 50,646.76

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Solution

The fourth proportional to 84,643.64, 116,727.62 and 50,646.76 is: 69,844.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,643.64 : 116,727.62 = 50,646.76 : x
  2. Step 2: Convert to fraction form
    84,643.64/116,727.62 = 50,646.76/x
  3. Step 3: Cross multiply
    84,643.64x = 116,727.62 × 50,646.76
  4. Step 4: Simplify right side
    84,643.64x = 5,911,875,755.51
  5. Step 5: Solve for x
    x = 5,911,875,755.51/84,643.64
  6. Step 6: Final answer
    x = 69,844.30

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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.