Home / 76,155.36-105,090.96-42,161.46

Finding the Fourth Proportional to 76,155.36, 105,090.96 and 42,161.46

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Solution

The fourth proportional to 76,155.36, 105,090.96 and 42,161.46 is: 58,180.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,155.36 : 105,090.96 = 42,161.46 : x
  2. Step 2: Convert to fraction form
    76,155.36/105,090.96 = 42,161.46/x
  3. Step 3: Cross multiply
    76,155.36x = 105,090.96 × 42,161.46
  4. Step 4: Simplify right side
    76,155.36x = 4,430,787,780.95
  5. Step 5: Solve for x
    x = 4,430,787,780.95/76,155.36
  6. Step 6: Final answer
    x = 58,180.91

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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.