Home / 45,956.78-68,875.57-20,637.60

Finding the Fourth Proportional to 45,956.78, 68,875.57 and 20,637.60

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Solution

The fourth proportional to 45,956.78, 68,875.57 and 20,637.60 is: 30,929.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,956.78 : 68,875.57 = 20,637.60 : x
  2. Step 2: Convert to fraction form
    45,956.78/68,875.57 = 20,637.60/x
  3. Step 3: Cross multiply
    45,956.78x = 68,875.57 × 20,637.60
  4. Step 4: Simplify right side
    45,956.78x = 1,421,426,015.87
  5. Step 5: Solve for x
    x = 1,421,426,015.87/45,956.78
  6. Step 6: Final answer
    x = 30,929.63

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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.