Home / 78,210.04-107,901.57-51,367.10

Finding the Fourth Proportional to 78,210.04, 107,901.57 and 51,367.10

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Solution

The fourth proportional to 78,210.04, 107,901.57 and 51,367.10 is: 70,868.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,210.04 : 107,901.57 = 51,367.10 : x
  2. Step 2: Convert to fraction form
    78,210.04/107,901.57 = 51,367.10/x
  3. Step 3: Cross multiply
    78,210.04x = 107,901.57 × 51,367.10
  4. Step 4: Simplify right side
    78,210.04x = 5,542,590,736.35
  5. Step 5: Solve for x
    x = 5,542,590,736.35/78,210.04
  6. Step 6: Final answer
    x = 70,868.02

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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.