Home / 45,178.08-67,784.40-21,802.56

Finding the Fourth Proportional to 45,178.08, 67,784.40 and 21,802.56

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Solution

The fourth proportional to 45,178.08, 67,784.40 and 21,802.56 is: 32,712.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,178.08 : 67,784.40 = 21,802.56 : x
  2. Step 2: Convert to fraction form
    45,178.08/67,784.40 = 21,802.56/x
  3. Step 3: Cross multiply
    45,178.08x = 67,784.40 × 21,802.56
  4. Step 4: Simplify right side
    45,178.08x = 1,477,873,448.06
  5. Step 5: Solve for x
    x = 1,477,873,448.06/45,178.08
  6. Step 6: Final answer
    x = 32,712.18

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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.