Home / 56,438.10-77,885.46-30,946.80

Finding the Fourth Proportional to 56,438.10, 77,885.46 and 30,946.80

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Solution

The fourth proportional to 56,438.10, 77,885.46 and 30,946.80 is: 42,707.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,438.10 : 77,885.46 = 30,946.80 : x
  2. Step 2: Convert to fraction form
    56,438.10/77,885.46 = 30,946.80/x
  3. Step 3: Cross multiply
    56,438.10x = 77,885.46 × 30,946.80
  4. Step 4: Simplify right side
    56,438.10x = 2,410,305,753.53
  5. Step 5: Solve for x
    x = 2,410,305,753.53/56,438.10
  6. Step 6: Final answer
    x = 42,707.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.