Home / 78,650.13-117,935.07-26,040.63

Finding the Fourth Proportional to 78,650.13, 117,935.07 and 26,040.63

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Solution

The fourth proportional to 78,650.13, 117,935.07 and 26,040.63 is: 39,047.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,650.13 : 117,935.07 = 26,040.63 : x
  2. Step 2: Convert to fraction form
    78,650.13/117,935.07 = 26,040.63/x
  3. Step 3: Cross multiply
    78,650.13x = 117,935.07 × 26,040.63
  4. Step 4: Simplify right side
    78,650.13x = 3,071,103,521.89
  5. Step 5: Solve for x
    x = 3,071,103,521.89/78,650.13
  6. Step 6: Final answer
    x = 39,047.66

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1.5x scale

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.