Home / 76,530.08-105,606.96-42,995.36

Finding the Fourth Proportional to 76,530.08, 105,606.96 and 42,995.36

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Solution

The fourth proportional to 76,530.08, 105,606.96 and 42,995.36 is: 59,331.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,530.08 : 105,606.96 = 42,995.36 : x
  2. Step 2: Convert to fraction form
    76,530.08/105,606.96 = 42,995.36/x
  3. Step 3: Cross multiply
    76,530.08x = 105,606.96 × 42,995.36
  4. Step 4: Simplify right side
    76,530.08x = 4,540,609,263.71
  5. Step 5: Solve for x
    x = 4,540,609,263.71/76,530.08
  6. Step 6: Final answer
    x = 59,331.04

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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.