Home / 77,320.16-106,734.48-52,203.68

Finding the Fourth Proportional to 77,320.16, 106,734.48 and 52,203.68

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Solution

The fourth proportional to 77,320.16, 106,734.48 and 52,203.68 is: 72,063.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,320.16 : 106,734.48 = 52,203.68 : x
  2. Step 2: Convert to fraction form
    77,320.16/106,734.48 = 52,203.68/x
  3. Step 3: Cross multiply
    77,320.16x = 106,734.48 × 52,203.68
  4. Step 4: Simplify right side
    77,320.16x = 5,571,932,638.89
  5. Step 5: Solve for x
    x = 5,571,932,638.89/77,320.16
  6. Step 6: Final answer
    x = 72,063.13

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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.