Home / 74,430.30-102,711.69-40,437.30

Finding the Fourth Proportional to 74,430.30, 102,711.69 and 40,437.30

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Solution

The fourth proportional to 74,430.30, 102,711.69 and 40,437.30 is: 55,802.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,430.30 : 102,711.69 = 40,437.30 : x
  2. Step 2: Convert to fraction form
    74,430.30/102,711.69 = 40,437.30/x
  3. Step 3: Cross multiply
    74,430.30x = 102,711.69 × 40,437.30
  4. Step 4: Simplify right side
    74,430.30x = 4,153,383,422.04
  5. Step 5: Solve for x
    x = 4,153,383,422.04/74,430.30
  6. Step 6: Final answer
    x = 55,802.32

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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.