Home / 81,408.23-112,345.55-45,597.45

Finding the Fourth Proportional to 81,408.23, 112,345.55 and 45,597.45

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Solution

The fourth proportional to 81,408.23, 112,345.55 and 45,597.45 is: 62,925.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,408.23 : 112,345.55 = 45,597.45 : x
  2. Step 2: Convert to fraction form
    81,408.23/112,345.55 = 45,597.45/x
  3. Step 3: Cross multiply
    81,408.23x = 112,345.55 × 45,597.45
  4. Step 4: Simplify right side
    81,408.23x = 5,122,670,598.85
  5. Step 5: Solve for x
    x = 5,122,670,598.85/81,408.23
  6. Step 6: Final answer
    x = 62,925.71

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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.