Home / 75,279.45-103,918.98-52,707.18

Finding the Fourth Proportional to 75,279.45, 103,918.98 and 52,707.18

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Solution

The fourth proportional to 75,279.45, 103,918.98 and 52,707.18 is: 72,759.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,279.45 : 103,918.98 = 52,707.18 : x
  2. Step 2: Convert to fraction form
    75,279.45/103,918.98 = 52,707.18/x
  3. Step 3: Cross multiply
    75,279.45x = 103,918.98 × 52,707.18
  4. Step 4: Simplify right side
    75,279.45x = 5,477,276,384.28
  5. Step 5: Solve for x
    x = 5,477,276,384.28/75,279.45
  6. Step 6: Final answer
    x = 72,759.25

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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.