Home / 55,904.90-77,150.17-30,412.70

Finding the Fourth Proportional to 55,904.90, 77,150.17 and 30,412.70

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Solution

The fourth proportional to 55,904.90, 77,150.17 and 30,412.70 is: 41,970.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,904.90 : 77,150.17 = 30,412.70 : x
  2. Step 2: Convert to fraction form
    55,904.90/77,150.17 = 30,412.70/x
  3. Step 3: Cross multiply
    55,904.90x = 77,150.17 × 30,412.70
  4. Step 4: Simplify right side
    55,904.90x = 2,346,344,916.74
  5. Step 5: Solve for x
    x = 2,346,344,916.74/55,904.90
  6. Step 6: Final answer
    x = 41,970.29

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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.