Home / 78,867.36-108,837.52-43,058.08

Finding the Fourth Proportional to 78,867.36, 108,837.52 and 43,058.08

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Solution

The fourth proportional to 78,867.36, 108,837.52 and 43,058.08 is: 59,420.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,867.36 : 108,837.52 = 43,058.08 : x
  2. Step 2: Convert to fraction form
    78,867.36/108,837.52 = 43,058.08/x
  3. Step 3: Cross multiply
    78,867.36x = 108,837.52 × 43,058.08
  4. Step 4: Simplify right side
    78,867.36x = 4,686,334,643.16
  5. Step 5: Solve for x
    x = 4,686,334,643.16/78,867.36
  6. Step 6: Final answer
    x = 59,420.46

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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.