Home / 74,663.40-103,032.33-40,672.19

Finding the Fourth Proportional to 74,663.40, 103,032.33 and 40,672.19

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Solution

The fourth proportional to 74,663.40, 103,032.33 and 40,672.19 is: 56,125.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,663.40 : 103,032.33 = 40,672.19 : x
  2. Step 2: Convert to fraction form
    74,663.40/103,032.33 = 40,672.19/x
  3. Step 3: Cross multiply
    74,663.40x = 103,032.33 × 40,672.19
  4. Step 4: Simplify right side
    74,663.40x = 4,190,549,986.74
  5. Step 5: Solve for x
    x = 4,190,549,986.74/74,663.40
  6. Step 6: Final answer
    x = 56,125.89

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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.