Home / 72,281.02-108,420.89-56,499.32

Finding the Fourth Proportional to 72,281.02, 108,420.89 and 56,499.32

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Solution

The fourth proportional to 72,281.02, 108,420.89 and 56,499.32 is: 84,748.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,281.02 : 108,420.89 = 56,499.32 : x
  2. Step 2: Convert to fraction form
    72,281.02/108,420.89 = 56,499.32/x
  3. Step 3: Cross multiply
    72,281.02x = 108,420.89 × 56,499.32
  4. Step 4: Simplify right side
    72,281.02x = 6,125,706,558.79
  5. Step 5: Solve for x
    x = 6,125,706,558.79/72,281.02
  6. Step 6: Final answer
    x = 84,748.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.