Home / 78,623.17-108,500.01-42,813.18

Finding the Fourth Proportional to 78,623.17, 108,500.01 and 42,813.18

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Solution

The fourth proportional to 78,623.17, 108,500.01 and 42,813.18 is: 59,082.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,623.17 : 108,500.01 = 42,813.18 : x
  2. Step 2: Convert to fraction form
    78,623.17/108,500.01 = 42,813.18/x
  3. Step 3: Cross multiply
    78,623.17x = 108,500.01 × 42,813.18
  4. Step 4: Simplify right side
    78,623.17x = 4,645,230,458.13
  5. Step 5: Solve for x
    x = 4,645,230,458.13/78,623.17
  6. Step 6: Final answer
    x = 59,082.21

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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.