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Finding the Fourth Proportional to 77,113.50, 115,022.04 and 70,026.54

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Solution

The fourth proportional to 77,113.50, 115,022.04 and 70,026.54 is: 104,451.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,113.50 : 115,022.04 = 70,026.54 : x
  2. Step 2: Convert to fraction form
    77,113.50/115,022.04 = 70,026.54/x
  3. Step 3: Cross multiply
    77,113.50x = 115,022.04 × 70,026.54
  4. Step 4: Simplify right side
    77,113.50x = 8,054,595,484.94
  5. Step 5: Solve for x
    x = 8,054,595,484.94/77,113.50
  6. Step 6: Final answer
    x = 104,451.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.