Home / 51,442.10-70,992.85-28,779.74

Finding the Fourth Proportional to 51,442.10, 70,992.85 and 28,779.74

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Solution

The fourth proportional to 51,442.10, 70,992.85 and 28,779.74 is: 39,717.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,442.10 : 70,992.85 = 28,779.74 : x
  2. Step 2: Convert to fraction form
    51,442.10/70,992.85 = 28,779.74/x
  3. Step 3: Cross multiply
    51,442.10x = 70,992.85 × 28,779.74
  4. Step 4: Simplify right side
    51,442.10x = 2,043,155,409.89
  5. Step 5: Solve for x
    x = 2,043,155,409.89/51,442.10
  6. Step 6: Final answer
    x = 39,717.58

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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.