Home / 75,663.18-113,415.93-42,334.38

Finding the Fourth Proportional to 75,663.18, 113,415.93 and 42,334.38

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Solution

The fourth proportional to 75,663.18, 113,415.93 and 42,334.38 is: 63,457.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,663.18 : 113,415.93 = 42,334.38 : x
  2. Step 2: Convert to fraction form
    75,663.18/113,415.93 = 42,334.38/x
  3. Step 3: Cross multiply
    75,663.18x = 113,415.93 × 42,334.38
  4. Step 4: Simplify right side
    75,663.18x = 4,801,393,078.67
  5. Step 5: Solve for x
    x = 4,801,393,078.67/75,663.18
  6. Step 6: Final answer
    x = 63,457.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.