Home / 91,133.25-125,763.89-53,407.50

Finding the Fourth Proportional to 91,133.25, 125,763.89 and 53,407.50

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Solution

The fourth proportional to 91,133.25, 125,763.89 and 53,407.50 is: 73,702.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,133.25 : 125,763.89 = 53,407.50 : x
  2. Step 2: Convert to fraction form
    91,133.25/125,763.89 = 53,407.50/x
  3. Step 3: Cross multiply
    91,133.25x = 125,763.89 × 53,407.50
  4. Step 4: Simplify right side
    91,133.25x = 6,716,734,688.14
  5. Step 5: Solve for x
    x = 6,716,734,688.14/91,133.25
  6. Step 6: Final answer
    x = 73,702.35

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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.