Home / 77,313.64-106,678.50-45,488.68

Finding the Fourth Proportional to 77,313.64, 106,678.50 and 45,488.68

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Solution

The fourth proportional to 77,313.64, 106,678.50 and 45,488.68 is: 62,765.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,313.64 : 106,678.50 = 45,488.68 : x
  2. Step 2: Convert to fraction form
    77,313.64/106,678.50 = 45,488.68/x
  3. Step 3: Cross multiply
    77,313.64x = 106,678.50 × 45,488.68
  4. Step 4: Simplify right side
    77,313.64x = 4,852,664,149.38
  5. Step 5: Solve for x
    x = 4,852,664,149.38/77,313.64
  6. Step 6: Final answer
    x = 62,765.95

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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.