Home / 77,505.15-106,929.54-50,663.16

Finding the Fourth Proportional to 77,505.15, 106,929.54 and 50,663.16

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Solution

The fourth proportional to 77,505.15, 106,929.54 and 50,663.16 is: 69,897.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,505.15 : 106,929.54 = 50,663.16 : x
  2. Step 2: Convert to fraction form
    77,505.15/106,929.54 = 50,663.16/x
  3. Step 3: Cross multiply
    77,505.15x = 106,929.54 × 50,663.16
  4. Step 4: Simplify right side
    77,505.15x = 5,417,388,393.75
  5. Step 5: Solve for x
    x = 5,417,388,393.75/77,505.15
  6. Step 6: Final answer
    x = 69,897.14

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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.