Home / 52,079.84-78,117.96-14,640.20

Finding the Fourth Proportional to 52,079.84, 78,117.96 and 14,640.20

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Solution

The fourth proportional to 52,079.84, 78,117.96 and 14,640.20 is: 21,959.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,079.84 : 78,117.96 = 14,640.20 : x
  2. Step 2: Convert to fraction form
    52,079.84/78,117.96 = 14,640.20/x
  3. Step 3: Cross multiply
    52,079.84x = 78,117.96 × 14,640.20
  4. Step 4: Simplify right side
    52,079.84x = 1,143,662,557.99
  5. Step 5: Solve for x
    x = 1,143,662,557.99/52,079.84
  6. Step 6: Final answer
    x = 21,959.79

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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.