Home / 55,810.13-77,017.97-30,659.63

Finding the Fourth Proportional to 55,810.13, 77,017.97 and 30,659.63

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Solution

The fourth proportional to 55,810.13, 77,017.97 and 30,659.63 is: 42,310.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,810.13 : 77,017.97 = 30,659.63 : x
  2. Step 2: Convert to fraction form
    55,810.13/77,017.97 = 30,659.63/x
  3. Step 3: Cross multiply
    55,810.13x = 77,017.97 × 30,659.63
  4. Step 4: Simplify right side
    55,810.13x = 2,361,342,155.11
  5. Step 5: Solve for x
    x = 2,361,342,155.11/55,810.13
  6. Step 6: Final answer
    x = 42,310.28

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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.