Home / 40,643.90-61,095.45-38,311.10

Finding the Fourth Proportional to 40,643.90, 61,095.45 and 38,311.10

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Solution

The fourth proportional to 40,643.90, 61,095.45 and 38,311.10 is: 57,588.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,643.90 : 61,095.45 = 38,311.10 : x
  2. Step 2: Convert to fraction form
    40,643.90/61,095.45 = 38,311.10/x
  3. Step 3: Cross multiply
    40,643.90x = 61,095.45 × 38,311.10
  4. Step 4: Simplify right side
    40,643.90x = 2,340,633,894.50
  5. Step 5: Solve for x
    x = 2,340,633,894.50/40,643.90
  6. Step 6: Final answer
    x = 57,588.81

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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.