Home / 81,509.32-112,477.23-45,207.34

Finding the Fourth Proportional to 81,509.32, 112,477.23 and 45,207.34

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Solution

The fourth proportional to 81,509.32, 112,477.23 and 45,207.34 is: 62,383.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,509.32 : 112,477.23 = 45,207.34 : x
  2. Step 2: Convert to fraction form
    81,509.32/112,477.23 = 45,207.34/x
  3. Step 3: Cross multiply
    81,509.32x = 112,477.23 × 45,207.34
  4. Step 4: Simplify right side
    81,509.32x = 5,084,796,378.87
  5. Step 5: Solve for x
    x = 5,084,796,378.87/81,509.32
  6. Step 6: Final answer
    x = 62,383.01

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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.