Home / 42,749.88-64,124.84-11,585.13

Finding the Fourth Proportional to 42,749.88, 64,124.84 and 11,585.13

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Solution

The fourth proportional to 42,749.88, 64,124.84 and 11,585.13 is: 17,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,749.88 : 64,124.84 = 11,585.13 : x
  2. Step 2: Convert to fraction form
    42,749.88/64,124.84 = 11,585.13/x
  3. Step 3: Cross multiply
    42,749.88x = 64,124.84 × 11,585.13
  4. Step 4: Simplify right side
    42,749.88x = 742,894,607.63
  5. Step 5: Solve for x
    x = 742,894,607.63/42,749.88
  6. Step 6: Final answer
    x = 17,377.70

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1.5x scale

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.