Home / 76,159.29-105,111.43-47,483.60

Finding the Fourth Proportional to 76,159.29, 105,111.43 and 47,483.60

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Solution

The fourth proportional to 76,159.29, 105,111.43 and 47,483.60 is: 65,534.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,159.29 : 105,111.43 = 47,483.60 : x
  2. Step 2: Convert to fraction form
    76,159.29/105,111.43 = 47,483.60/x
  3. Step 3: Cross multiply
    76,159.29x = 105,111.43 × 47,483.60
  4. Step 4: Simplify right side
    76,159.29x = 4,991,069,241.62
  5. Step 5: Solve for x
    x = 4,991,069,241.62/76,159.29
  6. Step 6: Final answer
    x = 65,534.61

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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.