Home / 53,981.63-74,499.92-40,345.95

Finding the Fourth Proportional to 53,981.63, 74,499.92 and 40,345.95

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Solution

The fourth proportional to 53,981.63, 74,499.92 and 40,345.95 is: 55,681.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,981.63 : 74,499.92 = 40,345.95 : x
  2. Step 2: Convert to fraction form
    53,981.63/74,499.92 = 40,345.95/x
  3. Step 3: Cross multiply
    53,981.63x = 74,499.92 × 40,345.95
  4. Step 4: Simplify right side
    53,981.63x = 3,005,770,047.32
  5. Step 5: Solve for x
    x = 3,005,770,047.32/53,981.63
  6. Step 6: Final answer
    x = 55,681.35

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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.