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Finding the Fourth Proportional to 52,683.36, 72,702.36 and 31,490.88

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Solution

The fourth proportional to 52,683.36, 72,702.36 and 31,490.88 is: 43,457.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,683.36 : 72,702.36 = 31,490.88 : x
  2. Step 2: Convert to fraction form
    52,683.36/72,702.36 = 31,490.88/x
  3. Step 3: Cross multiply
    52,683.36x = 72,702.36 × 31,490.88
  4. Step 4: Simplify right side
    52,683.36x = 2,289,461,294.48
  5. Step 5: Solve for x
    x = 2,289,461,294.48/52,683.36
  6. Step 6: Final answer
    x = 43,457.01

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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.