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Finding the Fourth Proportional to 52,661.00, 72,630.35 and 39,783.21

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Solution

The fourth proportional to 52,661.00, 72,630.35 and 39,783.21 is: 54,869.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,661.00 : 72,630.35 = 39,783.21 : x
  2. Step 2: Convert to fraction form
    52,661.00/72,630.35 = 39,783.21/x
  3. Step 3: Cross multiply
    52,661.00x = 72,630.35 × 39,783.21
  4. Step 4: Simplify right side
    52,661.00x = 2,889,468,267.51
  5. Step 5: Solve for x
    x = 2,889,468,267.51/52,661.00
  6. Step 6: Final answer
    x = 54,869.23

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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.