Home / 76,341.64-105,352.50-57,187.48

Finding the Fourth Proportional to 76,341.64, 105,352.50 and 57,187.48

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Solution

The fourth proportional to 76,341.64, 105,352.50 and 57,187.48 is: 78,919.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,341.64 : 105,352.50 = 57,187.48 : x
  2. Step 2: Convert to fraction form
    76,341.64/105,352.50 = 57,187.48/x
  3. Step 3: Cross multiply
    76,341.64x = 105,352.50 × 57,187.48
  4. Step 4: Simplify right side
    76,341.64x = 6,024,843,986.70
  5. Step 5: Solve for x
    x = 6,024,843,986.70/76,341.64
  6. Step 6: Final answer
    x = 78,919.50

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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.