Home / 76,258.56-114,384.32-20,854.40

Finding the Fourth Proportional to 76,258.56, 114,384.32 and 20,854.40

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Solution

The fourth proportional to 76,258.56, 114,384.32 and 20,854.40 is: 31,280.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,258.56 : 114,384.32 = 20,854.40 : x
  2. Step 2: Convert to fraction form
    76,258.56/114,384.32 = 20,854.40/x
  3. Step 3: Cross multiply
    76,258.56x = 114,384.32 × 20,854.40
  4. Step 4: Simplify right side
    76,258.56x = 2,385,416,363.01
  5. Step 5: Solve for x
    x = 2,385,416,363.01/76,258.56
  6. Step 6: Final answer
    x = 31,280.64

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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.