Home / 66,262.86-91,407.89-39,386.25

Finding the Fourth Proportional to 66,262.86, 91,407.89 and 39,386.25

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Solution

The fourth proportional to 66,262.86, 91,407.89 and 39,386.25 is: 54,332.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,262.86 : 91,407.89 = 39,386.25 : x
  2. Step 2: Convert to fraction form
    66,262.86/91,407.89 = 39,386.25/x
  3. Step 3: Cross multiply
    66,262.86x = 91,407.89 × 39,386.25
  4. Step 4: Simplify right side
    66,262.86x = 3,600,214,105.98
  5. Step 5: Solve for x
    x = 3,600,214,105.98/66,262.86
  6. Step 6: Final answer
    x = 54,332.31

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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.