Home / 83,985.86-115,859.67-53,746.94

Finding the Fourth Proportional to 83,985.86, 115,859.67 and 53,746.94

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Solution

The fourth proportional to 83,985.86, 115,859.67 and 53,746.94 is: 74,144.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,985.86 : 115,859.67 = 53,746.94 : x
  2. Step 2: Convert to fraction form
    83,985.86/115,859.67 = 53,746.94/x
  3. Step 3: Cross multiply
    83,985.86x = 115,859.67 × 53,746.94
  4. Step 4: Simplify right side
    83,985.86x = 6,227,102,820.01
  5. Step 5: Solve for x
    x = 6,227,102,820.01/83,985.86
  6. Step 6: Final answer
    x = 74,144.66

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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.