Home / 71,988.64-99,339.52-45,130.08

Finding the Fourth Proportional to 71,988.64, 99,339.52 and 45,130.08

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Solution

The fourth proportional to 71,988.64, 99,339.52 and 45,130.08 is: 62,276.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,988.64 : 99,339.52 = 45,130.08 : x
  2. Step 2: Convert to fraction form
    71,988.64/99,339.52 = 45,130.08/x
  3. Step 3: Cross multiply
    71,988.64x = 99,339.52 × 45,130.08
  4. Step 4: Simplify right side
    71,988.64x = 4,483,200,484.76
  5. Step 5: Solve for x
    x = 4,483,200,484.76/71,988.64
  6. Step 6: Final answer
    x = 62,276.50

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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.