Home / 52,425.28-78,637.44-21,253.12

Finding the Fourth Proportional to 52,425.28, 78,637.44 and 21,253.12

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Solution

The fourth proportional to 52,425.28, 78,637.44 and 21,253.12 is: 31,879.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,425.28 : 78,637.44 = 21,253.12 : x
  2. Step 2: Convert to fraction form
    52,425.28/78,637.44 = 21,253.12/x
  3. Step 3: Cross multiply
    52,425.28x = 78,637.44 × 21,253.12
  4. Step 4: Simplify right side
    52,425.28x = 1,671,290,948.81
  5. Step 5: Solve for x
    x = 1,671,290,948.81/52,425.28
  6. Step 6: Final answer
    x = 31,879.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.