Home / 76,632.06-105,752.32-42,643.64

Finding the Fourth Proportional to 76,632.06, 105,752.32 and 42,643.64

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Solution

The fourth proportional to 76,632.06, 105,752.32 and 42,643.64 is: 58,848.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,632.06 : 105,752.32 = 42,643.64 : x
  2. Step 2: Convert to fraction form
    76,632.06/105,752.32 = 42,643.64/x
  3. Step 3: Cross multiply
    76,632.06x = 105,752.32 × 42,643.64
  4. Step 4: Simplify right side
    76,632.06x = 4,509,663,863.24
  5. Step 5: Solve for x
    x = 4,509,663,863.24/76,632.06
  6. Step 6: Final answer
    x = 58,848.27

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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.