Home / 56,919.72-85,439.70-31,981.08

Finding the Fourth Proportional to 56,919.72, 85,439.70 and 31,981.08

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Solution

The fourth proportional to 56,919.72, 85,439.70 and 31,981.08 is: 48,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,919.72 : 85,439.70 = 31,981.08 : x
  2. Step 2: Convert to fraction form
    56,919.72/85,439.70 = 31,981.08/x
  3. Step 3: Cross multiply
    56,919.72x = 85,439.70 × 31,981.08
  4. Step 4: Simplify right side
    56,919.72x = 2,732,453,880.88
  5. Step 5: Solve for x
    x = 2,732,453,880.88/56,919.72
  6. Step 6: Final answer
    x = 48,005.40

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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.