Home / 47,856.59-71,779.40-12,798.98

Finding the Fourth Proportional to 47,856.59, 71,779.40 and 12,798.98

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Solution

The fourth proportional to 47,856.59, 71,779.40 and 12,798.98 is: 19,197.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,856.59 : 71,779.40 = 12,798.98 : x
  2. Step 2: Convert to fraction form
    47,856.59/71,779.40 = 12,798.98/x
  3. Step 3: Cross multiply
    47,856.59x = 71,779.40 × 12,798.98
  4. Step 4: Simplify right side
    47,856.59x = 918,702,682.12
  5. Step 5: Solve for x
    x = 918,702,682.12/47,856.59
  6. Step 6: Final answer
    x = 19,197.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.