Home / 81,225.18-112,095.09-45,415.08

Finding the Fourth Proportional to 81,225.18, 112,095.09 and 45,415.08

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Solution

The fourth proportional to 81,225.18, 112,095.09 and 45,415.08 is: 62,675.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,225.18 : 112,095.09 = 45,415.08 : x
  2. Step 2: Convert to fraction form
    81,225.18/112,095.09 = 45,415.08/x
  3. Step 3: Cross multiply
    81,225.18x = 112,095.09 × 45,415.08
  4. Step 4: Simplify right side
    81,225.18x = 5,090,807,479.96
  5. Step 5: Solve for x
    x = 5,090,807,479.96/81,225.18
  6. Step 6: Final answer
    x = 62,675.24

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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.