Home / 55,383.87-76,428.76-31,510.03

Finding the Fourth Proportional to 55,383.87, 76,428.76 and 31,510.03

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Solution

The fourth proportional to 55,383.87, 76,428.76 and 31,510.03 is: 43,483.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,383.87 : 76,428.76 = 31,510.03 : x
  2. Step 2: Convert to fraction form
    55,383.87/76,428.76 = 31,510.03/x
  3. Step 3: Cross multiply
    55,383.87x = 76,428.76 × 31,510.03
  4. Step 4: Simplify right side
    55,383.87x = 2,408,271,980.77
  5. Step 5: Solve for x
    x = 2,408,271,980.77/55,383.87
  6. Step 6: Final answer
    x = 43,483.28

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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.