Home / 52,649.12-72,630.96-31,124.36

Finding the Fourth Proportional to 52,649.12, 72,630.96 and 31,124.36

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Solution

The fourth proportional to 52,649.12, 72,630.96 and 31,124.36 is: 42,936.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,649.12 : 72,630.96 = 31,124.36 : x
  2. Step 2: Convert to fraction form
    52,649.12/72,630.96 = 31,124.36/x
  3. Step 3: Cross multiply
    52,649.12x = 72,630.96 × 31,124.36
  4. Step 4: Simplify right side
    52,649.12x = 2,260,592,146.19
  5. Step 5: Solve for x
    x = 2,260,592,146.19/52,649.12
  6. Step 6: Final answer
    x = 42,936.94

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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.