Home / 97,831.45-135,008.13-55,389.07

Finding the Fourth Proportional to 97,831.45, 135,008.13 and 55,389.07

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Solution

The fourth proportional to 97,831.45, 135,008.13 and 55,389.07 is: 76,437.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,831.45 : 135,008.13 = 55,389.07 : x
  2. Step 2: Convert to fraction form
    97,831.45/135,008.13 = 55,389.07/x
  3. Step 3: Cross multiply
    97,831.45x = 135,008.13 × 55,389.07
  4. Step 4: Simplify right side
    97,831.45x = 7,477,974,763.14
  5. Step 5: Solve for x
    x = 7,477,974,763.14/97,831.45
  6. Step 6: Final answer
    x = 76,437.33

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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.