Home / 65,440.17-90,298.35-37,140.39

Finding the Fourth Proportional to 65,440.17, 90,298.35 and 37,140.39

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Solution

The fourth proportional to 65,440.17, 90,298.35 and 37,140.39 is: 51,248.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,440.17 : 90,298.35 = 37,140.39 : x
  2. Step 2: Convert to fraction form
    65,440.17/90,298.35 = 37,140.39/x
  3. Step 3: Cross multiply
    65,440.17x = 90,298.35 × 37,140.39
  4. Step 4: Simplify right side
    65,440.17x = 3,353,715,935.36
  5. Step 5: Solve for x
    x = 3,353,715,935.36/65,440.17
  6. Step 6: Final answer
    x = 51,248.58

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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.