Home / 81,248.21-112,127.93-45,436.08

Finding the Fourth Proportional to 81,248.21, 112,127.93 and 45,436.08

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Solution

The fourth proportional to 81,248.21, 112,127.93 and 45,436.08 is: 62,704.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,248.21 : 112,127.93 = 45,436.08 : x
  2. Step 2: Convert to fraction form
    81,248.21/112,127.93 = 45,436.08/x
  3. Step 3: Cross multiply
    81,248.21x = 112,127.93 × 45,436.08
  4. Step 4: Simplify right side
    81,248.21x = 5,094,653,961.40
  5. Step 5: Solve for x
    x = 5,094,653,961.40/81,248.21
  6. Step 6: Final answer
    x = 62,704.82

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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.