Home / 77,347.98-116,022.07-21,188.59

Finding the Fourth Proportional to 77,347.98, 116,022.07 and 21,188.59

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Solution

The fourth proportional to 77,347.98, 116,022.07 and 21,188.59 is: 31,782.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,347.98 : 116,022.07 = 21,188.59 : x
  2. Step 2: Convert to fraction form
    77,347.98/116,022.07 = 21,188.59/x
  3. Step 3: Cross multiply
    77,347.98x = 116,022.07 × 21,188.59
  4. Step 4: Simplify right side
    77,347.98x = 2,458,343,808.61
  5. Step 5: Solve for x
    x = 2,458,343,808.61/77,347.98
  6. Step 6: Final answer
    x = 31,782.91

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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.