Home / 42,695.40-64,043.10-27,124.20

Finding the Fourth Proportional to 42,695.40, 64,043.10 and 27,124.20

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Solution

The fourth proportional to 42,695.40, 64,043.10 and 27,124.20 is: 40,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,695.40 : 64,043.10 = 27,124.20 : x
  2. Step 2: Convert to fraction form
    42,695.40/64,043.10 = 27,124.20/x
  3. Step 3: Cross multiply
    42,695.40x = 64,043.10 × 27,124.20
  4. Step 4: Simplify right side
    42,695.40x = 1,737,117,853.02
  5. Step 5: Solve for x
    x = 1,737,117,853.02/42,695.40
  6. Step 6: Final answer
    x = 40,686.30

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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.