Home / 42,135.81-58,145.90-23,272.53

Finding the Fourth Proportional to 42,135.81, 58,145.90 and 23,272.53

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Solution

The fourth proportional to 42,135.81, 58,145.90 and 23,272.53 is: 32,115.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,135.81 : 58,145.90 = 23,272.53 : x
  2. Step 2: Convert to fraction form
    42,135.81/58,145.90 = 23,272.53/x
  3. Step 3: Cross multiply
    42,135.81x = 58,145.90 × 23,272.53
  4. Step 4: Simplify right side
    42,135.81x = 1,353,202,085.76
  5. Step 5: Solve for x
    x = 1,353,202,085.76/42,135.81
  6. Step 6: Final answer
    x = 32,115.25

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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.