Home / 56,117.91-77,440.30-30,623.65

Finding the Fourth Proportional to 56,117.91, 77,440.30 and 30,623.65

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Solution

The fourth proportional to 56,117.91, 77,440.30 and 30,623.65 is: 42,259.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,117.91 : 77,440.30 = 30,623.65 : x
  2. Step 2: Convert to fraction form
    56,117.91/77,440.30 = 30,623.65/x
  3. Step 3: Cross multiply
    56,117.91x = 77,440.30 × 30,623.65
  4. Step 4: Simplify right side
    56,117.91x = 2,371,504,643.10
  5. Step 5: Solve for x
    x = 2,371,504,643.10/56,117.91
  6. Step 6: Final answer
    x = 42,259.32

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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.