Home / 56,315.04-77,745.60-38,436.72

Finding the Fourth Proportional to 56,315.04, 77,745.60 and 38,436.72

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Solution

The fourth proportional to 56,315.04, 77,745.60 and 38,436.72 is: 53,063.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,315.04 : 77,745.60 = 38,436.72 : x
  2. Step 2: Convert to fraction form
    56,315.04/77,745.60 = 38,436.72/x
  3. Step 3: Cross multiply
    56,315.04x = 77,745.60 × 38,436.72
  4. Step 4: Simplify right side
    56,315.04x = 2,988,285,858.43
  5. Step 5: Solve for x
    x = 2,988,285,858.43/56,315.04
  6. Step 6: Final answer
    x = 53,063.73

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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.