Home / 76,072.08-104,985-42,535.92

Finding the Fourth Proportional to 76,072.08, 104,985 and 42,535.92

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Solution

The fourth proportional to 76,072.08, 104,985 and 42,535.92 is: 58,702.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,072.08 : 104,985 = 42,535.92 : x
  2. Step 2: Convert to fraction form
    76,072.08/104,985 = 42,535.92/x
  3. Step 3: Cross multiply
    76,072.08x = 104,985 × 42,535.92
  4. Step 4: Simplify right side
    76,072.08x = 4,465,633,561.20
  5. Step 5: Solve for x
    x = 4,465,633,561.20/76,072.08
  6. Step 6: Final answer
    x = 58,702.66

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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.