Home / 81,760.18-112,838.40-45,465.24

Finding the Fourth Proportional to 81,760.18, 112,838.40 and 45,465.24

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Solution

The fourth proportional to 81,760.18, 112,838.40 and 45,465.24 is: 62,747.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,760.18 : 112,838.40 = 45,465.24 : x
  2. Step 2: Convert to fraction form
    81,760.18/112,838.40 = 45,465.24/x
  3. Step 3: Cross multiply
    81,760.18x = 112,838.40 × 45,465.24
  4. Step 4: Simplify right side
    81,760.18x = 5,130,225,360.36
  5. Step 5: Solve for x
    x = 5,130,225,360.36/81,760.18
  6. Step 6: Final answer
    x = 62,747.24

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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.