Home / 74,457.04-102,774.64-47,671.68

Finding the Fourth Proportional to 74,457.04, 102,774.64 and 47,671.68

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Solution

The fourth proportional to 74,457.04, 102,774.64 and 47,671.68 is: 65,802.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,457.04 : 102,774.64 = 47,671.68 : x
  2. Step 2: Convert to fraction form
    74,457.04/102,774.64 = 47,671.68/x
  3. Step 3: Cross multiply
    74,457.04x = 102,774.64 × 47,671.68
  4. Step 4: Simplify right side
    74,457.04x = 4,899,439,750.20
  5. Step 5: Solve for x
    x = 4,899,439,750.20/74,457.04
  6. Step 6: Final answer
    x = 65,802.24

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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.