Home / 56,897.40-78,516.78-31,746.36

Finding the Fourth Proportional to 56,897.40, 78,516.78 and 31,746.36

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Solution

The fourth proportional to 56,897.40, 78,516.78 and 31,746.36 is: 43,809.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,897.40 : 78,516.78 = 31,746.36 : x
  2. Step 2: Convert to fraction form
    56,897.40/78,516.78 = 31,746.36/x
  3. Step 3: Cross multiply
    56,897.40x = 78,516.78 × 31,746.36
  4. Step 4: Simplify right side
    56,897.40x = 2,492,621,963.92
  5. Step 5: Solve for x
    x = 2,492,621,963.92/56,897.40
  6. Step 6: Final answer
    x = 43,809.07

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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.