Home / 77,429.90-116,066.40-52,472.45

Finding the Fourth Proportional to 77,429.90, 116,066.40 and 52,472.45

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Solution

The fourth proportional to 77,429.90, 116,066.40 and 52,472.45 is: 78,655.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,429.90 : 116,066.40 = 52,472.45 : x
  2. Step 2: Convert to fraction form
    77,429.90/116,066.40 = 52,472.45/x
  3. Step 3: Cross multiply
    77,429.90x = 116,066.40 × 52,472.45
  4. Step 4: Simplify right side
    77,429.90x = 6,090,288,370.68
  5. Step 5: Solve for x
    x = 6,090,288,370.68/77,429.90
  6. Step 6: Final answer
    x = 78,655.51

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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.