Home / 50,931.12-70,284.25-28,270.05

Finding the Fourth Proportional to 50,931.12, 70,284.25 and 28,270.05

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Solution

The fourth proportional to 50,931.12, 70,284.25 and 28,270.05 is: 39,012.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,931.12 : 70,284.25 = 28,270.05 : x
  2. Step 2: Convert to fraction form
    50,931.12/70,284.25 = 28,270.05/x
  3. Step 3: Cross multiply
    50,931.12x = 70,284.25 × 28,270.05
  4. Step 4: Simplify right side
    50,931.12x = 1,986,939,261.71
  5. Step 5: Solve for x
    x = 1,986,939,261.71/50,931.12
  6. Step 6: Final answer
    x = 39,012.28

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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.