Home / 78,935.02-108,928.50-43,125.22

Finding the Fourth Proportional to 78,935.02, 108,928.50 and 43,125.22

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Solution

The fourth proportional to 78,935.02, 108,928.50 and 43,125.22 is: 59,511.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,935.02 : 108,928.50 = 43,125.22 : x
  2. Step 2: Convert to fraction form
    78,935.02/108,928.50 = 43,125.22/x
  3. Step 3: Cross multiply
    78,935.02x = 108,928.50 × 43,125.22
  4. Step 4: Simplify right side
    78,935.02x = 4,697,565,526.77
  5. Step 5: Solve for x
    x = 4,697,565,526.77/78,935.02
  6. Step 6: Final answer
    x = 59,511.81

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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.