Home / 77,239.57-106,535.64-70,886.68

Finding the Fourth Proportional to 77,239.57, 106,535.64 and 70,886.68

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Solution

The fourth proportional to 77,239.57, 106,535.64 and 70,886.68 is: 97,773.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,239.57 : 106,535.64 = 70,886.68 : x
  2. Step 2: Convert to fraction form
    77,239.57/106,535.64 = 70,886.68/x
  3. Step 3: Cross multiply
    77,239.57x = 106,535.64 × 70,886.68
  4. Step 4: Simplify right side
    77,239.57x = 7,551,957,821.28
  5. Step 5: Solve for x
    x = 7,551,957,821.28/77,239.57
  6. Step 6: Final answer
    x = 97,773.17

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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.