Home / 78,242.22-107,971.35-46,392.06

Finding the Fourth Proportional to 78,242.22, 107,971.35 and 46,392.06

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Solution

The fourth proportional to 78,242.22, 107,971.35 and 46,392.06 is: 64,019.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,242.22 : 107,971.35 = 46,392.06 : x
  2. Step 2: Convert to fraction form
    78,242.22/107,971.35 = 46,392.06/x
  3. Step 3: Cross multiply
    78,242.22x = 107,971.35 × 46,392.06
  4. Step 4: Simplify right side
    78,242.22x = 5,009,013,347.48
  5. Step 5: Solve for x
    x = 5,009,013,347.48/78,242.22
  6. Step 6: Final answer
    x = 64,019.32

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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.