Home / 105,430.70-145,494.27-57,684.24

Finding the Fourth Proportional to 105,430.70, 145,494.27 and 57,684.24

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Solution

The fourth proportional to 105,430.70, 145,494.27 and 57,684.24 is: 79,604.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,430.70 : 145,494.27 = 57,684.24 : x
  2. Step 2: Convert to fraction form
    105,430.70/145,494.27 = 57,684.24/x
  3. Step 3: Cross multiply
    105,430.70x = 145,494.27 × 57,684.24
  4. Step 4: Simplify right side
    105,430.70x = 8,392,726,389.30
  5. Step 5: Solve for x
    x = 8,392,726,389.30/105,430.70
  6. Step 6: Final answer
    x = 79,604.20

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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.