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Finding the Fourth Proportional to 86,457.80, 119,341.52 and 50,659.40

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Solution

The fourth proportional to 86,457.80, 119,341.52 and 50,659.40 is: 69,927.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,457.80 : 119,341.52 = 50,659.40 : x
  2. Step 2: Convert to fraction form
    86,457.80/119,341.52 = 50,659.40/x
  3. Step 3: Cross multiply
    86,457.80x = 119,341.52 × 50,659.40
  4. Step 4: Simplify right side
    86,457.80x = 6,045,769,798.29
  5. Step 5: Solve for x
    x = 6,045,769,798.29/86,457.80
  6. Step 6: Final answer
    x = 69,927.41

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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.