Home / 42,702.19-64,050.14-13,118.22

Finding the Fourth Proportional to 42,702.19, 64,050.14 and 13,118.22

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Solution

The fourth proportional to 42,702.19, 64,050.14 and 13,118.22 is: 19,676.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,702.19 : 64,050.14 = 13,118.22 : x
  2. Step 2: Convert to fraction form
    42,702.19/64,050.14 = 13,118.22/x
  3. Step 3: Cross multiply
    42,702.19x = 64,050.14 × 13,118.22
  4. Step 4: Simplify right side
    42,702.19x = 840,223,860.35
  5. Step 5: Solve for x
    x = 840,223,860.35/42,702.19
  6. Step 6: Final answer
    x = 19,676.37

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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.