Home / 74,823.56-103,259.88-42,129.23

Finding the Fourth Proportional to 74,823.56, 103,259.88 and 42,129.23

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Solution

The fourth proportional to 74,823.56, 103,259.88 and 42,129.23 is: 58,140.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,823.56 : 103,259.88 = 42,129.23 : x
  2. Step 2: Convert to fraction form
    74,823.56/103,259.88 = 42,129.23/x
  3. Step 3: Cross multiply
    74,823.56x = 103,259.88 × 42,129.23
  4. Step 4: Simplify right side
    74,823.56x = 4,350,259,012.19
  5. Step 5: Solve for x
    x = 4,350,259,012.19/74,823.56
  6. Step 6: Final answer
    x = 58,140.23

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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.