Home / 64,635.32-89,175.30-52,678.10

Finding the Fourth Proportional to 64,635.32, 89,175.30 and 52,678.10

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Solution

The fourth proportional to 64,635.32, 89,175.30 and 52,678.10 is: 72,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,635.32 : 89,175.30 = 52,678.10 : x
  2. Step 2: Convert to fraction form
    64,635.32/89,175.30 = 52,678.10/x
  3. Step 3: Cross multiply
    64,635.32x = 89,175.30 × 52,678.10
  4. Step 4: Simplify right side
    64,635.32x = 4,697,585,370.93
  5. Step 5: Solve for x
    x = 4,697,585,370.93/64,635.32
  6. Step 6: Final answer
    x = 72,678.30

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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.