Home / 53,451.06-73,702.08-39,979.14

Finding the Fourth Proportional to 53,451.06, 73,702.08 and 39,979.14

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Solution

The fourth proportional to 53,451.06, 73,702.08 and 39,979.14 is: 55,126.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,451.06 : 73,702.08 = 39,979.14 : x
  2. Step 2: Convert to fraction form
    53,451.06/73,702.08 = 39,979.14/x
  3. Step 3: Cross multiply
    53,451.06x = 73,702.08 × 39,979.14
  4. Step 4: Simplify right side
    53,451.06x = 2,946,545,774.61
  5. Step 5: Solve for x
    x = 2,946,545,774.61/53,451.06
  6. Step 6: Final answer
    x = 55,126.05

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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.