Home / 81,303.24-112,192.32-45,486.64

Finding the Fourth Proportional to 81,303.24, 112,192.32 and 45,486.64

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Solution

The fourth proportional to 81,303.24, 112,192.32 and 45,486.64 is: 62,768.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,303.24 : 112,192.32 = 45,486.64 : x
  2. Step 2: Convert to fraction form
    81,303.24/112,192.32 = 45,486.64/x
  3. Step 3: Cross multiply
    81,303.24x = 112,192.32 × 45,486.64
  4. Step 4: Simplify right side
    81,303.24x = 5,103,251,670.60
  5. Step 5: Solve for x
    x = 5,103,251,670.60/81,303.24
  6. Step 6: Final answer
    x = 62,768.12

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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.