Home / 78,332.94-108,099.19-42,522.69

Finding the Fourth Proportional to 78,332.94, 108,099.19 and 42,522.69

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Solution

The fourth proportional to 78,332.94, 108,099.19 and 42,522.69 is: 58,681.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,332.94 : 108,099.19 = 42,522.69 : x
  2. Step 2: Convert to fraction form
    78,332.94/108,099.19 = 42,522.69/x
  3. Step 3: Cross multiply
    78,332.94x = 108,099.19 × 42,522.69
  4. Step 4: Simplify right side
    78,332.94x = 4,596,668,804.15
  5. Step 5: Solve for x
    x = 4,596,668,804.15/78,332.94
  6. Step 6: Final answer
    x = 58,681.17

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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.