Home / 72,995.07-100,758.28-42,790.11

Finding the Fourth Proportional to 72,995.07, 100,758.28 and 42,790.11

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Solution

The fourth proportional to 72,995.07, 100,758.28 and 42,790.11 is: 59,065.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,995.07 : 100,758.28 = 42,790.11 : x
  2. Step 2: Convert to fraction form
    72,995.07/100,758.28 = 42,790.11/x
  3. Step 3: Cross multiply
    72,995.07x = 100,758.28 × 42,790.11
  4. Step 4: Simplify right side
    72,995.07x = 4,311,457,670.66
  5. Step 5: Solve for x
    x = 4,311,457,670.66/72,995.07
  6. Step 6: Final answer
    x = 59,065.05

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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.