Home / 51,326.40-77,068.80-27,998.40

Finding the Fourth Proportional to 51,326.40, 77,068.80 and 27,998.40

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Solution

The fourth proportional to 51,326.40, 77,068.80 and 27,998.40 is: 42,040.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,326.40 : 77,068.80 = 27,998.40 : x
  2. Step 2: Convert to fraction form
    51,326.40/77,068.80 = 27,998.40/x
  3. Step 3: Cross multiply
    51,326.40x = 77,068.80 × 27,998.40
  4. Step 4: Simplify right side
    51,326.40x = 2,157,803,089.92
  5. Step 5: Solve for x
    x = 2,157,803,089.92/51,326.40
  6. Step 6: Final answer
    x = 42,040.80

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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.