Home / 64,430.49-88,918.52-36,138

Finding the Fourth Proportional to 64,430.49, 88,918.52 and 36,138

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Solution

The fourth proportional to 64,430.49, 88,918.52 and 36,138 is: 49,872.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,430.49 : 88,918.52 = 36,138 : x
  2. Step 2: Convert to fraction form
    64,430.49/88,918.52 = 36,138/x
  3. Step 3: Cross multiply
    64,430.49x = 88,918.52 × 36,138
  4. Step 4: Simplify right side
    64,430.49x = 3,213,337,295.07
  5. Step 5: Solve for x
    x = 3,213,337,295.07/64,430.49
  6. Step 6: Final answer
    x = 49,872.93

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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.