Home / 57,117.02-78,818.91-31,621.59

Finding the Fourth Proportional to 57,117.02, 78,818.91 and 31,621.59

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Solution

The fourth proportional to 57,117.02, 78,818.91 and 31,621.59 is: 43,636.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,117.02 : 78,818.91 = 31,621.59 : x
  2. Step 2: Convert to fraction form
    57,117.02/78,818.91 = 31,621.59/x
  3. Step 3: Cross multiply
    57,117.02x = 78,818.91 × 31,621.59
  4. Step 4: Simplify right side
    57,117.02x = 2,492,379,354.79
  5. Step 5: Solve for x
    x = 2,492,379,354.79/57,117.02
  6. Step 6: Final answer
    x = 43,636.37

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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.