Home / 78,222.51-107,802.50-55,562.36

Finding the Fourth Proportional to 78,222.51, 107,802.50 and 55,562.36

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Solution

The fourth proportional to 78,222.51, 107,802.50 and 55,562.36 is: 76,573.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,222.51 : 107,802.50 = 55,562.36 : x
  2. Step 2: Convert to fraction form
    78,222.51/107,802.50 = 55,562.36/x
  3. Step 3: Cross multiply
    78,222.51x = 107,802.50 × 55,562.36
  4. Step 4: Simplify right side
    78,222.51x = 5,989,760,497.08
  5. Step 5: Solve for x
    x = 5,989,760,497.08/78,222.51
  6. Step 6: Final answer
    x = 76,573.36

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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.