Home / 56,421.12-84,609.79-30,111.51

Finding the Fourth Proportional to 56,421.12, 84,609.79 and 30,111.51

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Solution

The fourth proportional to 56,421.12, 84,609.79 and 30,111.51 is: 45,155.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,421.12 : 84,609.79 = 30,111.51 : x
  2. Step 2: Convert to fraction form
    56,421.12/84,609.79 = 30,111.51/x
  3. Step 3: Cross multiply
    56,421.12x = 84,609.79 × 30,111.51
  4. Step 4: Simplify right side
    56,421.12x = 2,547,728,537.68
  5. Step 5: Solve for x
    x = 2,547,728,537.68/56,421.12
  6. Step 6: Final answer
    x = 45,155.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.