Home / 81,316.91-112,219.53-45,507.98

Finding the Fourth Proportional to 81,316.91, 112,219.53 and 45,507.98

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Solution

The fourth proportional to 81,316.91, 112,219.53 and 45,507.98 is: 62,802.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,316.91 : 112,219.53 = 45,507.98 : x
  2. Step 2: Convert to fraction form
    81,316.91/112,219.53 = 45,507.98/x
  3. Step 3: Cross multiply
    81,316.91x = 112,219.53 × 45,507.98
  4. Step 4: Simplify right side
    81,316.91x = 5,106,883,605.51
  5. Step 5: Solve for x
    x = 5,106,883,605.51/81,316.91
  6. Step 6: Final answer
    x = 62,802.23

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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.