Home / 56,123.86-77,448.49-30,629.58

Finding the Fourth Proportional to 56,123.86, 77,448.49 and 30,629.58

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Solution

The fourth proportional to 56,123.86, 77,448.49 and 30,629.58 is: 42,267.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,123.86 : 77,448.49 = 30,629.58 : x
  2. Step 2: Convert to fraction form
    56,123.86/77,448.49 = 30,629.58/x
  3. Step 3: Cross multiply
    56,123.86x = 77,448.49 × 30,629.58
  4. Step 4: Simplify right side
    56,123.86x = 2,372,214,720.33
  5. Step 5: Solve for x
    x = 2,372,214,720.33/56,123.86
  6. Step 6: Final answer
    x = 42,267.49

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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.