Home / 52,424.40-78,646.20-21,262.80

Finding the Fourth Proportional to 52,424.40, 78,646.20 and 21,262.80

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Solution

The fourth proportional to 52,424.40, 78,646.20 and 21,262.80 is: 31,898.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,424.40 : 78,646.20 = 21,262.80 : x
  2. Step 2: Convert to fraction form
    52,424.40/78,646.20 = 21,262.80/x
  3. Step 3: Cross multiply
    52,424.40x = 78,646.20 × 21,262.80
  4. Step 4: Simplify right side
    52,424.40x = 1,672,238,421.36
  5. Step 5: Solve for x
    x = 1,672,238,421.36/52,424.40
  6. Step 6: Final answer
    x = 31,898.09

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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.