Home / 47,432.19-65,479.29-30,461.76

Finding the Fourth Proportional to 47,432.19, 65,479.29 and 30,461.76

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Solution

The fourth proportional to 47,432.19, 65,479.29 and 30,461.76 is: 42,051.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,432.19 : 65,479.29 = 30,461.76 : x
  2. Step 2: Convert to fraction form
    47,432.19/65,479.29 = 30,461.76/x
  3. Step 3: Cross multiply
    47,432.19x = 65,479.29 × 30,461.76
  4. Step 4: Simplify right side
    47,432.19x = 1,994,614,416.95
  5. Step 5: Solve for x
    x = 1,994,614,416.95/47,432.19
  6. Step 6: Final answer
    x = 42,051.91

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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.