Home / 55,890.51-77,129.43-30,397.13

Finding the Fourth Proportional to 55,890.51, 77,129.43 and 30,397.13

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Solution

The fourth proportional to 55,890.51, 77,129.43 and 30,397.13 is: 41,948.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,890.51 : 77,129.43 = 30,397.13 : x
  2. Step 2: Convert to fraction form
    55,890.51/77,129.43 = 30,397.13/x
  3. Step 3: Cross multiply
    55,890.51x = 77,129.43 × 30,397.13
  4. Step 4: Simplify right side
    55,890.51x = 2,344,512,924.89
  5. Step 5: Solve for x
    x = 2,344,512,924.89/55,890.51
  6. Step 6: Final answer
    x = 41,948.32

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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.