Home / 74,159.10-111,275.10-34,709.40

Finding the Fourth Proportional to 74,159.10, 111,275.10 and 34,709.40

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Solution

The fourth proportional to 74,159.10, 111,275.10 and 34,709.40 is: 52,081.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,159.10 : 111,275.10 = 34,709.40 : x
  2. Step 2: Convert to fraction form
    74,159.10/111,275.10 = 34,709.40/x
  3. Step 3: Cross multiply
    74,159.10x = 111,275.10 × 34,709.40
  4. Step 4: Simplify right side
    74,159.10x = 3,862,291,955.94
  5. Step 5: Solve for x
    x = 3,862,291,955.94/74,159.10
  6. Step 6: Final answer
    x = 52,081.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.