Home / 65,693.12-90,646.08-37,399.36

Finding the Fourth Proportional to 65,693.12, 90,646.08 and 37,399.36

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Solution

The fourth proportional to 65,693.12, 90,646.08 and 37,399.36 is: 51,605.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,693.12 : 90,646.08 = 37,399.36 : x
  2. Step 2: Convert to fraction form
    65,693.12/90,646.08 = 37,399.36/x
  3. Step 3: Cross multiply
    65,693.12x = 90,646.08 × 37,399.36
  4. Step 4: Simplify right side
    65,693.12x = 3,390,105,378.51
  5. Step 5: Solve for x
    x = 3,390,105,378.51/65,693.12
  6. Step 6: Final answer
    x = 51,605.18

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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.