Home / 76,352.78-105,366.96-42,360.20

Finding the Fourth Proportional to 76,352.78, 105,366.96 and 42,360.20

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Solution

The fourth proportional to 76,352.78, 105,366.96 and 42,360.20 is: 58,457.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,352.78 : 105,366.96 = 42,360.20 : x
  2. Step 2: Convert to fraction form
    76,352.78/105,366.96 = 42,360.20/x
  3. Step 3: Cross multiply
    76,352.78x = 105,366.96 × 42,360.20
  4. Step 4: Simplify right side
    76,352.78x = 4,463,365,498.99
  5. Step 5: Solve for x
    x = 4,463,365,498.99/76,352.78
  6. Step 6: Final answer
    x = 58,457.14

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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.