Home / 78,417.08-117,559.50-34,010.40

Finding the Fourth Proportional to 78,417.08, 117,559.50 and 34,010.40

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Solution

The fourth proportional to 78,417.08, 117,559.50 and 34,010.40 is: 50,986.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,417.08 : 117,559.50 = 34,010.40 : x
  2. Step 2: Convert to fraction form
    78,417.08/117,559.50 = 34,010.40/x
  3. Step 3: Cross multiply
    78,417.08x = 117,559.50 × 34,010.40
  4. Step 4: Simplify right side
    78,417.08x = 3,998,245,462.15
  5. Step 5: Solve for x
    x = 3,998,245,462.15/78,417.08
  6. Step 6: Final answer
    x = 50,986.92

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1.5x scale

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.