Home / 77,929.56-116,946.12-28,681.56

Finding the Fourth Proportional to 77,929.56, 116,946.12 and 28,681.56

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Solution

The fourth proportional to 77,929.56, 116,946.12 and 28,681.56 is: 43,041.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,929.56 : 116,946.12 = 28,681.56 : x
  2. Step 2: Convert to fraction form
    77,929.56/116,946.12 = 28,681.56/x
  3. Step 3: Cross multiply
    77,929.56x = 116,946.12 × 28,681.56
  4. Step 4: Simplify right side
    77,929.56x = 3,354,197,157.55
  5. Step 5: Solve for x
    x = 3,354,197,157.55/77,929.56
  6. Step 6: Final answer
    x = 43,041.40

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1.5x scale

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.