Home / 81,870.32-112,980.12-46,060.40

Finding the Fourth Proportional to 81,870.32, 112,980.12 and 46,060.40

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Solution

The fourth proportional to 81,870.32, 112,980.12 and 46,060.40 is: 63,562.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,870.32 : 112,980.12 = 46,060.40 : x
  2. Step 2: Convert to fraction form
    81,870.32/112,980.12 = 46,060.40/x
  3. Step 3: Cross multiply
    81,870.32x = 112,980.12 × 46,060.40
  4. Step 4: Simplify right side
    81,870.32x = 5,203,909,519.25
  5. Step 5: Solve for x
    x = 5,203,909,519.25/81,870.32
  6. Step 6: Final answer
    x = 63,562.83

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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.