Home / 99,038.18-136,672.76-53,716.15

Finding the Fourth Proportional to 99,038.18, 136,672.76 and 53,716.15

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Solution

The fourth proportional to 99,038.18, 136,672.76 and 53,716.15 is: 74,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,038.18 : 136,672.76 = 53,716.15 : x
  2. Step 2: Convert to fraction form
    99,038.18/136,672.76 = 53,716.15/x
  3. Step 3: Cross multiply
    99,038.18x = 136,672.76 × 53,716.15
  4. Step 4: Simplify right side
    99,038.18x = 7,341,534,477.07
  5. Step 5: Solve for x
    x = 7,341,534,477.07/99,038.18
  6. Step 6: Final answer
    x = 74,128.33

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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.