Home / 74,981.48-103,476.95-40,989.23

Finding the Fourth Proportional to 74,981.48, 103,476.95 and 40,989.23

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Solution

The fourth proportional to 74,981.48, 103,476.95 and 40,989.23 is: 56,566.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,981.48 : 103,476.95 = 40,989.23 : x
  2. Step 2: Convert to fraction form
    74,981.48/103,476.95 = 40,989.23/x
  3. Step 3: Cross multiply
    74,981.48x = 103,476.95 × 40,989.23
  4. Step 4: Simplify right side
    74,981.48x = 4,241,439,780.92
  5. Step 5: Solve for x
    x = 4,241,439,780.92/74,981.48
  6. Step 6: Final answer
    x = 56,566.50

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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.