Home / 52,060.09-78,090.13-12,617.20

Finding the Fourth Proportional to 52,060.09, 78,090.13 and 12,617.20

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Solution

The fourth proportional to 52,060.09, 78,090.13 and 12,617.20 is: 18,925.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,060.09 : 78,090.13 = 12,617.20 : x
  2. Step 2: Convert to fraction form
    52,060.09/78,090.13 = 12,617.20/x
  3. Step 3: Cross multiply
    52,060.09x = 78,090.13 × 12,617.20
  4. Step 4: Simplify right side
    52,060.09x = 985,279,015.00
  5. Step 5: Solve for x
    x = 985,279,015.00/52,060.09
  6. Step 6: Final answer
    x = 18,925.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.