Home / 45,320.19-67,981.62-21,630.23

Finding the Fourth Proportional to 45,320.19, 67,981.62 and 21,630.23

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Solution

The fourth proportional to 45,320.19, 67,981.62 and 21,630.23 is: 32,445.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,320.19 : 67,981.62 = 21,630.23 : x
  2. Step 2: Convert to fraction form
    45,320.19/67,981.62 = 21,630.23/x
  3. Step 3: Cross multiply
    45,320.19x = 67,981.62 × 21,630.23
  4. Step 4: Simplify right side
    45,320.19x = 1,470,457,991.40
  5. Step 5: Solve for x
    x = 1,470,457,991.40/45,320.19
  6. Step 6: Final answer
    x = 32,445.98

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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.