Home / 51,897.71-77,853.16-20,303.72

Finding the Fourth Proportional to 51,897.71, 77,853.16 and 20,303.72

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Solution

The fourth proportional to 51,897.71, 77,853.16 and 20,303.72 is: 30,458.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,897.71 : 77,853.16 = 20,303.72 : x
  2. Step 2: Convert to fraction form
    51,897.71/77,853.16 = 20,303.72/x
  3. Step 3: Cross multiply
    51,897.71x = 77,853.16 × 20,303.72
  4. Step 4: Simplify right side
    51,897.71x = 1,580,708,575.61
  5. Step 5: Solve for x
    x = 1,580,708,575.61/51,897.71
  6. Step 6: Final answer
    x = 30,458.16

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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.