Home / 76,490.10-105,554.14-43,785.34

Finding the Fourth Proportional to 76,490.10, 105,554.14 and 43,785.34

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Solution

The fourth proportional to 76,490.10, 105,554.14 and 43,785.34 is: 60,422.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,490.10 : 105,554.14 = 43,785.34 : x
  2. Step 2: Convert to fraction form
    76,490.10/105,554.14 = 43,785.34/x
  3. Step 3: Cross multiply
    76,490.10x = 105,554.14 × 43,785.34
  4. Step 4: Simplify right side
    76,490.10x = 4,621,723,534.96
  5. Step 5: Solve for x
    x = 4,621,723,534.96/76,490.10
  6. Step 6: Final answer
    x = 60,422.51

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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.