Home / 81,359.32-112,256.54-47,347.22

Finding the Fourth Proportional to 81,359.32, 112,256.54 and 47,347.22

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Solution

The fourth proportional to 81,359.32, 112,256.54 and 47,347.22 is: 65,327.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,359.32 : 112,256.54 = 47,347.22 : x
  2. Step 2: Convert to fraction form
    81,359.32/112,256.54 = 47,347.22/x
  3. Step 3: Cross multiply
    81,359.32x = 112,256.54 × 47,347.22
  4. Step 4: Simplify right side
    81,359.32x = 5,315,035,095.82
  5. Step 5: Solve for x
    x = 5,315,035,095.82/81,359.32
  6. Step 6: Final answer
    x = 65,327.92

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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.