Home / 89,707.50-123,802.02-49,421.34

Finding the Fourth Proportional to 89,707.50, 123,802.02 and 49,421.34

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Solution

The fourth proportional to 89,707.50, 123,802.02 and 49,421.34 is: 68,204.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,707.50 : 123,802.02 = 49,421.34 : x
  2. Step 2: Convert to fraction form
    89,707.50/123,802.02 = 49,421.34/x
  3. Step 3: Cross multiply
    89,707.50x = 123,802.02 × 49,421.34
  4. Step 4: Simplify right side
    89,707.50x = 6,118,461,723.11
  5. Step 5: Solve for x
    x = 6,118,461,723.11/89,707.50
  6. Step 6: Final answer
    x = 68,204.57

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1.5x scale

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.