Home / 52,303.89-78,431.13-19,000.74

Finding the Fourth Proportional to 52,303.89, 78,431.13 and 19,000.74

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Solution

The fourth proportional to 52,303.89, 78,431.13 and 19,000.74 is: 28,492.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,303.89 : 78,431.13 = 19,000.74 : x
  2. Step 2: Convert to fraction form
    52,303.89/78,431.13 = 19,000.74/x
  3. Step 3: Cross multiply
    52,303.89x = 78,431.13 × 19,000.74
  4. Step 4: Simplify right side
    52,303.89x = 1,490,249,509.04
  5. Step 5: Solve for x
    x = 1,490,249,509.04/52,303.89
  6. Step 6: Final answer
    x = 28,492.14

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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.