Home / 77,402.16-106,847.64-52,285.68

Finding the Fourth Proportional to 77,402.16, 106,847.64 and 52,285.68

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Solution

The fourth proportional to 77,402.16, 106,847.64 and 52,285.68 is: 72,176.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,402.16 : 106,847.64 = 52,285.68 : x
  2. Step 2: Convert to fraction form
    77,402.16/106,847.64 = 52,285.68/x
  3. Step 3: Cross multiply
    77,402.16x = 106,847.64 × 52,285.68
  4. Step 4: Simplify right side
    77,402.16x = 5,586,601,513.80
  5. Step 5: Solve for x
    x = 5,586,601,513.80/77,402.16
  6. Step 6: Final answer
    x = 72,176.30

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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.