Home / 52,691.36-72,720.90-30,038.60

Finding the Fourth Proportional to 52,691.36, 72,720.90 and 30,038.60

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Solution

The fourth proportional to 52,691.36, 72,720.90 and 30,038.60 is: 41,457.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,691.36 : 72,720.90 = 30,038.60 : x
  2. Step 2: Convert to fraction form
    52,691.36/72,720.90 = 30,038.60/x
  3. Step 3: Cross multiply
    52,691.36x = 72,720.90 × 30,038.60
  4. Step 4: Simplify right side
    52,691.36x = 2,184,434,026.74
  5. Step 5: Solve for x
    x = 2,184,434,026.74/52,691.36
  6. Step 6: Final answer
    x = 41,457.16

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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.