Home / 74,700.73-103,085.62-40,709.45

Finding the Fourth Proportional to 74,700.73, 103,085.62 and 40,709.45

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Solution

The fourth proportional to 74,700.73, 103,085.62 and 40,709.45 is: 56,178.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,700.73 : 103,085.62 = 40,709.45 : x
  2. Step 2: Convert to fraction form
    74,700.73/103,085.62 = 40,709.45/x
  3. Step 3: Cross multiply
    74,700.73x = 103,085.62 × 40,709.45
  4. Step 4: Simplify right side
    74,700.73x = 4,196,559,201.71
  5. Step 5: Solve for x
    x = 4,196,559,201.71/74,700.73
  6. Step 6: Final answer
    x = 56,178.29

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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.