Home / 91,570.07-137,353.77-55,555.11

Finding the Fourth Proportional to 91,570.07, 137,353.77 and 55,555.11

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Solution

The fourth proportional to 91,570.07, 137,353.77 and 55,555.11 is: 83,331.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,570.07 : 137,353.77 = 55,555.11 : x
  2. Step 2: Convert to fraction form
    91,570.07/137,353.77 = 55,555.11/x
  3. Step 3: Cross multiply
    91,570.07x = 137,353.77 × 55,555.11
  4. Step 4: Simplify right side
    91,570.07x = 7,630,703,801.26
  5. Step 5: Solve for x
    x = 7,630,703,801.26/91,570.07
  6. Step 6: Final answer
    x = 83,331.86

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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.