Home / 58,639.68-87,956.64-19,215.36

Finding the Fourth Proportional to 58,639.68, 87,956.64 and 19,215.36

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Solution

The fourth proportional to 58,639.68, 87,956.64 and 19,215.36 is: 28,822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,639.68 : 87,956.64 = 19,215.36 : x
  2. Step 2: Convert to fraction form
    58,639.68/87,956.64 = 19,215.36/x
  3. Step 3: Cross multiply
    58,639.68x = 87,956.64 × 19,215.36
  4. Step 4: Simplify right side
    58,639.68x = 1,690,118,501.99
  5. Step 5: Solve for x
    x = 1,690,118,501.99/58,639.68
  6. Step 6: Final answer
    x = 28,822.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.