Home / 78,332.36-108,126.73-46,501.28

Finding the Fourth Proportional to 78,332.36, 108,126.73 and 46,501.28

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Solution

The fourth proportional to 78,332.36, 108,126.73 and 46,501.28 is: 64,188.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,332.36 : 108,126.73 = 46,501.28 : x
  2. Step 2: Convert to fraction form
    78,332.36/108,126.73 = 46,501.28/x
  3. Step 3: Cross multiply
    78,332.36x = 108,126.73 × 46,501.28
  4. Step 4: Simplify right side
    78,332.36x = 5,028,031,270.18
  5. Step 5: Solve for x
    x = 5,028,031,270.18/78,332.36
  6. Step 6: Final answer
    x = 64,188.43

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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.