Home / 56,869.32-78,390.36-38,933.22

Finding the Fourth Proportional to 56,869.32, 78,390.36 and 38,933.22

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Solution

The fourth proportional to 56,869.32, 78,390.36 and 38,933.22 is: 53,666.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,869.32 : 78,390.36 = 38,933.22 : x
  2. Step 2: Convert to fraction form
    56,869.32/78,390.36 = 38,933.22/x
  3. Step 3: Cross multiply
    56,869.32x = 78,390.36 × 38,933.22
  4. Step 4: Simplify right side
    56,869.32x = 3,051,989,131.76
  5. Step 5: Solve for x
    x = 3,051,989,131.76/56,869.32
  6. Step 6: Final answer
    x = 53,666.71

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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.