Home / 51,230.79-70,698.20-28,570.05

Finding the Fourth Proportional to 51,230.79, 70,698.20 and 28,570.05

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Solution

The fourth proportional to 51,230.79, 70,698.20 and 28,570.05 is: 39,426.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,230.79 : 70,698.20 = 28,570.05 : x
  2. Step 2: Convert to fraction form
    51,230.79/70,698.20 = 28,570.05/x
  3. Step 3: Cross multiply
    51,230.79x = 70,698.20 × 28,570.05
  4. Step 4: Simplify right side
    51,230.79x = 2,019,850,966.06
  5. Step 5: Solve for x
    x = 2,019,850,966.06/51,230.79
  6. Step 6: Final answer
    x = 39,426.50

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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.