Home / 65,266.23-90,065.65-38,410.32

Finding the Fourth Proportional to 65,266.23, 90,065.65 and 38,410.32

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Solution

The fourth proportional to 65,266.23, 90,065.65 and 38,410.32 is: 53,005.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,266.23 : 90,065.65 = 38,410.32 : x
  2. Step 2: Convert to fraction form
    65,266.23/90,065.65 = 38,410.32/x
  3. Step 3: Cross multiply
    65,266.23x = 90,065.65 × 38,410.32
  4. Step 4: Simplify right side
    65,266.23x = 3,459,450,437.51
  5. Step 5: Solve for x
    x = 3,459,450,437.51/65,266.23
  6. Step 6: Final answer
    x = 53,005.21

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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.