Home / 85,260.64-127,890.78-22,931.20

Finding the Fourth Proportional to 85,260.64, 127,890.78 and 22,931.20

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Solution

The fourth proportional to 85,260.64, 127,890.78 and 22,931.20 is: 34,396.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,260.64 : 127,890.78 = 22,931.20 : x
  2. Step 2: Convert to fraction form
    85,260.64/127,890.78 = 22,931.20/x
  3. Step 3: Cross multiply
    85,260.64x = 127,890.78 × 22,931.20
  4. Step 4: Simplify right side
    85,260.64x = 2,932,689,054.34
  5. Step 5: Solve for x
    x = 2,932,689,054.34/85,260.64
  6. Step 6: Final answer
    x = 34,396.75

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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.