Home / 56,433.68-77,979.96-40,490.16

Finding the Fourth Proportional to 56,433.68, 77,979.96 and 40,490.16

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Solution

The fourth proportional to 56,433.68, 77,979.96 and 40,490.16 is: 55,949.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,433.68 : 77,979.96 = 40,490.16 : x
  2. Step 2: Convert to fraction form
    56,433.68/77,979.96 = 40,490.16/x
  3. Step 3: Cross multiply
    56,433.68x = 77,979.96 × 40,490.16
  4. Step 4: Simplify right side
    56,433.68x = 3,157,421,057.19
  5. Step 5: Solve for x
    x = 3,157,421,057.19/56,433.68
  6. Step 6: Final answer
    x = 55,949.23

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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.