Home / 64,684.07-97,030.20-20,312.57

Finding the Fourth Proportional to 64,684.07, 97,030.20 and 20,312.57

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Solution

The fourth proportional to 64,684.07, 97,030.20 and 20,312.57 is: 30,470.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,684.07 : 97,030.20 = 20,312.57 : x
  2. Step 2: Convert to fraction form
    64,684.07/97,030.20 = 20,312.57/x
  3. Step 3: Cross multiply
    64,684.07x = 97,030.20 × 20,312.57
  4. Step 4: Simplify right side
    64,684.07x = 1,970,932,729.61
  5. Step 5: Solve for x
    x = 1,970,932,729.61/64,684.07
  6. Step 6: Final answer
    x = 30,470.14

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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.