Home / 88,031.08-121,482.54-47,744.68

Finding the Fourth Proportional to 88,031.08, 121,482.54 and 47,744.68

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Solution

The fourth proportional to 88,031.08, 121,482.54 and 47,744.68 is: 65,887.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,031.08 : 121,482.54 = 47,744.68 : x
  2. Step 2: Convert to fraction form
    88,031.08/121,482.54 = 47,744.68/x
  3. Step 3: Cross multiply
    88,031.08x = 121,482.54 × 47,744.68
  4. Step 4: Simplify right side
    88,031.08x = 5,800,144,997.89
  5. Step 5: Solve for x
    x = 5,800,144,997.89/88,031.08
  6. Step 6: Final answer
    x = 65,887.47

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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.