Home / 74,821.32-103,158.36-52,970.76

Finding the Fourth Proportional to 74,821.32, 103,158.36 and 52,970.76

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Solution

The fourth proportional to 74,821.32, 103,158.36 and 52,970.76 is: 73,032.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,821.32 : 103,158.36 = 52,970.76 : x
  2. Step 2: Convert to fraction form
    74,821.32/103,158.36 = 52,970.76/x
  3. Step 3: Cross multiply
    74,821.32x = 103,158.36 × 52,970.76
  4. Step 4: Simplify right side
    74,821.32x = 5,464,376,729.55
  5. Step 5: Solve for x
    x = 5,464,376,729.55/74,821.32
  6. Step 6: Final answer
    x = 73,032.35

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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.