Home / 56,715.09-78,264.14-31,220.93

Finding the Fourth Proportional to 56,715.09, 78,264.14 and 31,220.93

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Solution

The fourth proportional to 56,715.09, 78,264.14 and 31,220.93 is: 43,083.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,715.09 : 78,264.14 = 31,220.93 : x
  2. Step 2: Convert to fraction form
    56,715.09/78,264.14 = 31,220.93/x
  3. Step 3: Cross multiply
    56,715.09x = 78,264.14 × 31,220.93
  4. Step 4: Simplify right side
    56,715.09x = 2,443,479,276.01
  5. Step 5: Solve for x
    x = 2,443,479,276.01/56,715.09
  6. Step 6: Final answer
    x = 43,083.41

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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.