Home / 91,877.80-126,782.54-51,582.33

Finding the Fourth Proportional to 91,877.80, 126,782.54 and 51,582.33

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Solution

The fourth proportional to 91,877.80, 126,782.54 and 51,582.33 is: 71,178.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,877.80 : 126,782.54 = 51,582.33 : x
  2. Step 2: Convert to fraction form
    91,877.80/126,782.54 = 51,582.33/x
  3. Step 3: Cross multiply
    91,877.80x = 126,782.54 × 51,582.33
  4. Step 4: Simplify right side
    91,877.80x = 6,539,738,804.47
  5. Step 5: Solve for x
    x = 6,539,738,804.47/91,877.80
  6. Step 6: Final answer
    x = 71,178.66

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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.