Home / 45,172.32-67,762.26-15,590.40

Finding the Fourth Proportional to 45,172.32, 67,762.26 and 15,590.40

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Solution

The fourth proportional to 45,172.32, 67,762.26 and 15,590.40 is: 23,386.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,172.32 : 67,762.26 = 15,590.40 : x
  2. Step 2: Convert to fraction form
    45,172.32/67,762.26 = 15,590.40/x
  3. Step 3: Cross multiply
    45,172.32x = 67,762.26 × 15,590.40
  4. Step 4: Simplify right side
    45,172.32x = 1,056,440,738.30
  5. Step 5: Solve for x
    x = 1,056,440,738.30/45,172.32
  6. Step 6: Final answer
    x = 23,386.90

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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.