Home / 78,607.08-108,426.06-50,347.80

Finding the Fourth Proportional to 78,607.08, 108,426.06 and 50,347.80

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Solution

The fourth proportional to 78,607.08, 108,426.06 and 50,347.80 is: 69,446.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,607.08 : 108,426.06 = 50,347.80 : x
  2. Step 2: Convert to fraction form
    78,607.08/108,426.06 = 50,347.80/x
  3. Step 3: Cross multiply
    78,607.08x = 108,426.06 × 50,347.80
  4. Step 4: Simplify right side
    78,607.08x = 5,459,013,583.67
  5. Step 5: Solve for x
    x = 5,459,013,583.67/78,607.08
  6. Step 6: Final answer
    x = 69,446.84

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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.