Home / 56,635.80-78,187.44-35,421.90

Finding the Fourth Proportional to 56,635.80, 78,187.44 and 35,421.90

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Solution

The fourth proportional to 56,635.80, 78,187.44 and 35,421.90 is: 48,901.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,635.80 : 78,187.44 = 35,421.90 : x
  2. Step 2: Convert to fraction form
    56,635.80/78,187.44 = 35,421.90/x
  3. Step 3: Cross multiply
    56,635.80x = 78,187.44 × 35,421.90
  4. Step 4: Simplify right side
    56,635.80x = 2,769,547,680.94
  5. Step 5: Solve for x
    x = 2,769,547,680.94/56,635.80
  6. Step 6: Final answer
    x = 48,901.01

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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.