Home / 42,125.42-63,188.13-28,937.81

Finding the Fourth Proportional to 42,125.42, 63,188.13 and 28,937.81

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Solution

The fourth proportional to 42,125.42, 63,188.13 and 28,937.81 is: 43,406.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,125.42 : 63,188.13 = 28,937.81 : x
  2. Step 2: Convert to fraction form
    42,125.42/63,188.13 = 28,937.81/x
  3. Step 3: Cross multiply
    42,125.42x = 63,188.13 × 28,937.81
  4. Step 4: Simplify right side
    42,125.42x = 1,828,525,784.25
  5. Step 5: Solve for x
    x = 1,828,525,784.25/42,125.42
  6. Step 6: Final answer
    x = 43,406.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.