Home / 56,802.13-78,383.38-31,307.07

Finding the Fourth Proportional to 56,802.13, 78,383.38 and 31,307.07

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Solution

The fourth proportional to 56,802.13, 78,383.38 and 31,307.07 is: 43,201.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,802.13 : 78,383.38 = 31,307.07 : x
  2. Step 2: Convert to fraction form
    56,802.13/78,383.38 = 31,307.07/x
  3. Step 3: Cross multiply
    56,802.13x = 78,383.38 × 31,307.07
  4. Step 4: Simplify right side
    56,802.13x = 2,453,953,964.50
  5. Step 5: Solve for x
    x = 2,453,953,964.50/56,802.13
  6. Step 6: Final answer
    x = 43,201.79

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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.