Home / 81,635.37-112,649.07-45,818.40

Finding the Fourth Proportional to 81,635.37, 112,649.07 and 45,818.40

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Solution

The fourth proportional to 81,635.37, 112,649.07 and 45,818.40 is: 63,225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,635.37 : 112,649.07 = 45,818.40 : x
  2. Step 2: Convert to fraction form
    81,635.37/112,649.07 = 45,818.40/x
  3. Step 3: Cross multiply
    81,635.37x = 112,649.07 × 45,818.40
  4. Step 4: Simplify right side
    81,635.37x = 5,161,400,148.89
  5. Step 5: Solve for x
    x = 5,161,400,148.89/81,635.37
  6. Step 6: Final answer
    x = 63,225.05

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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.