Home / 65,931.36-90,984.80-37,636.98

Finding the Fourth Proportional to 65,931.36, 90,984.80 and 37,636.98

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Solution

The fourth proportional to 65,931.36, 90,984.80 and 37,636.98 is: 51,938.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,931.36 : 90,984.80 = 37,636.98 : x
  2. Step 2: Convert to fraction form
    65,931.36/90,984.80 = 37,636.98/x
  3. Step 3: Cross multiply
    65,931.36x = 90,984.80 × 37,636.98
  4. Step 4: Simplify right side
    65,931.36x = 3,424,393,097.90
  5. Step 5: Solve for x
    x = 3,424,393,097.90/65,931.36
  6. Step 6: Final answer
    x = 51,938.76

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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.