Home / 51,275.42-70,792.12-39,315.76

Finding the Fourth Proportional to 51,275.42, 70,792.12 and 39,315.76

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Solution

The fourth proportional to 51,275.42, 70,792.12 and 39,315.76 is: 54,280.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,275.42 : 70,792.12 = 39,315.76 : x
  2. Step 2: Convert to fraction form
    51,275.42/70,792.12 = 39,315.76/x
  3. Step 3: Cross multiply
    51,275.42x = 70,792.12 × 39,315.76
  4. Step 4: Simplify right side
    51,275.42x = 2,783,245,999.81
  5. Step 5: Solve for x
    x = 2,783,245,999.81/51,275.42
  6. Step 6: Final answer
    x = 54,280.32

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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.