Home / 47,000.10-64,859.78-25,779.21

Finding the Fourth Proportional to 47,000.10, 64,859.78 and 25,779.21

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Solution

The fourth proportional to 47,000.10, 64,859.78 and 25,779.21 is: 35,575.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,000.10 : 64,859.78 = 25,779.21 : x
  2. Step 2: Convert to fraction form
    47,000.10/64,859.78 = 25,779.21/x
  3. Step 3: Cross multiply
    47,000.10x = 64,859.78 × 25,779.21
  4. Step 4: Simplify right side
    47,000.10x = 1,672,033,824.73
  5. Step 5: Solve for x
    x = 1,672,033,824.73/47,000.10
  6. Step 6: Final answer
    x = 35,575.12

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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.