Home / 55,547.08-76,655.10-30,398.20

Finding the Fourth Proportional to 55,547.08, 76,655.10 and 30,398.20

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Solution

The fourth proportional to 55,547.08, 76,655.10 and 30,398.20 is: 41,949.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,547.08 : 76,655.10 = 30,398.20 : x
  2. Step 2: Convert to fraction form
    55,547.08/76,655.10 = 30,398.20/x
  3. Step 3: Cross multiply
    55,547.08x = 76,655.10 × 30,398.20
  4. Step 4: Simplify right side
    55,547.08x = 2,330,177,060.82
  5. Step 5: Solve for x
    x = 2,330,177,060.82/55,547.08
  6. Step 6: Final answer
    x = 41,949.59

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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.