Home / 91,401.84-126,148.80-55,603.08

Finding the Fourth Proportional to 91,401.84, 126,148.80 and 55,603.08

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Solution

The fourth proportional to 91,401.84, 126,148.80 and 55,603.08 is: 76,740.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,401.84 : 126,148.80 = 55,603.08 : x
  2. Step 2: Convert to fraction form
    91,401.84/126,148.80 = 55,603.08/x
  3. Step 3: Cross multiply
    91,401.84x = 126,148.80 × 55,603.08
  4. Step 4: Simplify right side
    91,401.84x = 7,014,261,818.30
  5. Step 5: Solve for x
    x = 7,014,261,818.30/91,401.84
  6. Step 6: Final answer
    x = 76,740.93

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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.