Home / 55,487.64-76,567.38-31,612.86

Finding the Fourth Proportional to 55,487.64, 76,567.38 and 31,612.86

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Solution

The fourth proportional to 55,487.64, 76,567.38 and 31,612.86 is: 43,622.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,487.64 : 76,567.38 = 31,612.86 : x
  2. Step 2: Convert to fraction form
    55,487.64/76,567.38 = 31,612.86/x
  3. Step 3: Cross multiply
    55,487.64x = 76,567.38 × 31,612.86
  4. Step 4: Simplify right side
    55,487.64x = 2,420,513,864.51
  5. Step 5: Solve for x
    x = 2,420,513,864.51/55,487.64
  6. Step 6: Final answer
    x = 43,622.58

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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.