Home / 55,420.16-76,477.92-31,547.84

Finding the Fourth Proportional to 55,420.16, 76,477.92 and 31,547.84

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Solution

The fourth proportional to 55,420.16, 76,477.92 and 31,547.84 is: 43,534.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,420.16 : 76,477.92 = 31,547.84 : x
  2. Step 2: Convert to fraction form
    55,420.16/76,477.92 = 31,547.84/x
  3. Step 3: Cross multiply
    55,420.16x = 76,477.92 × 31,547.84
  4. Step 4: Simplify right side
    55,420.16x = 2,412,713,183.69
  5. Step 5: Solve for x
    x = 2,412,713,183.69/55,420.16
  6. Step 6: Final answer
    x = 43,534.94

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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.