Home / 51,009.60-70,390.98-28,350.18

Finding the Fourth Proportional to 51,009.60, 70,390.98 and 28,350.18

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Solution

The fourth proportional to 51,009.60, 70,390.98 and 28,350.18 is: 39,121.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,009.60 : 70,390.98 = 28,350.18 : x
  2. Step 2: Convert to fraction form
    51,009.60/70,390.98 = 28,350.18/x
  3. Step 3: Cross multiply
    51,009.60x = 70,390.98 × 28,350.18
  4. Step 4: Simplify right side
    51,009.60x = 1,995,596,953.38
  5. Step 5: Solve for x
    x = 1,995,596,953.38/51,009.60
  6. Step 6: Final answer
    x = 39,121.99

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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.