Home / 56,901.72-78,506.10-31,746.36

Finding the Fourth Proportional to 56,901.72, 78,506.10 and 31,746.36

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Solution

The fourth proportional to 56,901.72, 78,506.10 and 31,746.36 is: 43,799.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,901.72 : 78,506.10 = 31,746.36 : x
  2. Step 2: Convert to fraction form
    56,901.72/78,506.10 = 31,746.36/x
  3. Step 3: Cross multiply
    56,901.72x = 78,506.10 × 31,746.36
  4. Step 4: Simplify right side
    56,901.72x = 2,492,282,912.80
  5. Step 5: Solve for x
    x = 2,492,282,912.80/56,901.72
  6. Step 6: Final answer
    x = 43,799.78

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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.