Home / 65,579.52-90,598.40-42,972.24

Finding the Fourth Proportional to 65,579.52, 90,598.40 and 42,972.24

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Solution

The fourth proportional to 65,579.52, 90,598.40 and 42,972.24 is: 59,366.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,579.52 : 90,598.40 = 42,972.24 : x
  2. Step 2: Convert to fraction form
    65,579.52/90,598.40 = 42,972.24/x
  3. Step 3: Cross multiply
    65,579.52x = 90,598.40 × 42,972.24
  4. Step 4: Simplify right side
    65,579.52x = 3,893,216,188.42
  5. Step 5: Solve for x
    x = 3,893,216,188.42/65,579.52
  6. Step 6: Final answer
    x = 59,366.34

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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.