Home / 55,210.59-76,192.47-31,015.80

Finding the Fourth Proportional to 55,210.59, 76,192.47 and 31,015.80

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Solution

The fourth proportional to 55,210.59, 76,192.47 and 31,015.80 is: 42,802.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,210.59 : 76,192.47 = 31,015.80 : x
  2. Step 2: Convert to fraction form
    55,210.59/76,192.47 = 31,015.80/x
  3. Step 3: Cross multiply
    55,210.59x = 76,192.47 × 31,015.80
  4. Step 4: Simplify right side
    55,210.59x = 2,363,170,411.03
  5. Step 5: Solve for x
    x = 2,363,170,411.03/55,210.59
  6. Step 6: Final answer
    x = 42,802.85

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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.