Home / 78,332.36-108,098.89-42,522.39

Finding the Fourth Proportional to 78,332.36, 108,098.89 and 42,522.39

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Solution

The fourth proportional to 78,332.36, 108,098.89 and 42,522.39 is: 58,681.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,332.36 : 108,098.89 = 42,522.39 : x
  2. Step 2: Convert to fraction form
    78,332.36/108,098.89 = 42,522.39/x
  3. Step 3: Cross multiply
    78,332.36x = 108,098.89 × 42,522.39
  4. Step 4: Simplify right side
    78,332.36x = 4,596,623,052.84
  5. Step 5: Solve for x
    x = 4,596,623,052.84/78,332.36
  6. Step 6: Final answer
    x = 58,681.03

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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.