Home / 52,000.09-78,009.85-20,837.77

Finding the Fourth Proportional to 52,000.09, 78,009.85 and 20,837.77

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Solution

The fourth proportional to 52,000.09, 78,009.85 and 20,837.77 is: 31,260.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,000.09 : 78,009.85 = 20,837.77 : x
  2. Step 2: Convert to fraction form
    52,000.09/78,009.85 = 20,837.77/x
  3. Step 3: Cross multiply
    52,000.09x = 78,009.85 × 20,837.77
  4. Step 4: Simplify right side
    52,000.09x = 1,625,551,312.03
  5. Step 5: Solve for x
    x = 1,625,551,312.03/52,000.09
  6. Step 6: Final answer
    x = 31,260.55

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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.