Home / 52,051.61-78,029.56-18,763.55

Finding the Fourth Proportional to 52,051.61, 78,029.56 and 18,763.55

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Solution

The fourth proportional to 52,051.61, 78,029.56 and 18,763.55 is: 28,128.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,051.61 : 78,029.56 = 18,763.55 : x
  2. Step 2: Convert to fraction form
    52,051.61/78,029.56 = 18,763.55/x
  3. Step 3: Cross multiply
    52,051.61x = 78,029.56 × 18,763.55
  4. Step 4: Simplify right side
    52,051.61x = 1,464,111,476.46
  5. Step 5: Solve for x
    x = 1,464,111,476.46/52,051.61
  6. Step 6: Final answer
    x = 28,128.07

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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.