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Finding the Fourth Proportional to 56,969.62, 78,621.07 and 34,315.71

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Solution

The fourth proportional to 56,969.62, 78,621.07 and 34,315.71 is: 47,357.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,969.62 : 78,621.07 = 34,315.71 : x
  2. Step 2: Convert to fraction form
    56,969.62/78,621.07 = 34,315.71/x
  3. Step 3: Cross multiply
    56,969.62x = 78,621.07 × 34,315.71
  4. Step 4: Simplify right side
    56,969.62x = 2,697,937,838.01
  5. Step 5: Solve for x
    x = 2,697,937,838.01/56,969.62
  6. Step 6: Final answer
    x = 47,357.48

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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.