Home / 65,688.04-98,516.70-21,303.40

Finding the Fourth Proportional to 65,688.04, 98,516.70 and 21,303.40

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Solution

The fourth proportional to 65,688.04, 98,516.70 and 21,303.40 is: 31,950.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,688.04 : 98,516.70 = 21,303.40 : x
  2. Step 2: Convert to fraction form
    65,688.04/98,516.70 = 21,303.40/x
  3. Step 3: Cross multiply
    65,688.04x = 98,516.70 × 21,303.40
  4. Step 4: Simplify right side
    65,688.04x = 2,098,740,666.78
  5. Step 5: Solve for x
    x = 2,098,740,666.78/65,688.04
  6. Step 6: Final answer
    x = 31,950.12

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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.