Home / 77,678.05-116,436.27-52,720.13

Finding the Fourth Proportional to 77,678.05, 116,436.27 and 52,720.13

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Solution

The fourth proportional to 77,678.05, 116,436.27 and 52,720.13 is: 79,025.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,678.05 : 116,436.27 = 52,720.13 : x
  2. Step 2: Convert to fraction form
    77,678.05/116,436.27 = 52,720.13/x
  3. Step 3: Cross multiply
    77,678.05x = 116,436.27 × 52,720.13
  4. Step 4: Simplify right side
    77,678.05x = 6,138,535,291.12
  5. Step 5: Solve for x
    x = 6,138,535,291.12/77,678.05
  6. Step 6: Final answer
    x = 79,025.36

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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.