Home / 91,740.60-126,603.30-55,437.06

Finding the Fourth Proportional to 91,740.60, 126,603.30 and 55,437.06

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Solution

The fourth proportional to 91,740.60, 126,603.30 and 55,437.06 is: 76,503.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,740.60 : 126,603.30 = 55,437.06 : x
  2. Step 2: Convert to fraction form
    91,740.60/126,603.30 = 55,437.06/x
  3. Step 3: Cross multiply
    91,740.60x = 126,603.30 × 55,437.06
  4. Step 4: Simplify right side
    91,740.60x = 7,018,514,738.30
  5. Step 5: Solve for x
    x = 7,018,514,738.30/91,740.60
  6. Step 6: Final answer
    x = 76,503.91

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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.