Home / 78,036.06-117,058.98-31,282.86

Finding the Fourth Proportional to 78,036.06, 117,058.98 and 31,282.86

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Solution

The fourth proportional to 78,036.06, 117,058.98 and 31,282.86 is: 46,926.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,036.06 : 117,058.98 = 31,282.86 : x
  2. Step 2: Convert to fraction form
    78,036.06/117,058.98 = 31,282.86/x
  3. Step 3: Cross multiply
    78,036.06x = 117,058.98 × 31,282.86
  4. Step 4: Simplify right side
    78,036.06x = 3,661,939,683.08
  5. Step 5: Solve for x
    x = 3,661,939,683.08/78,036.06
  6. Step 6: Final answer
    x = 46,926.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.