Home / 78,224.32-108,038.67-53,030.08

Finding the Fourth Proportional to 78,224.32, 108,038.67 and 53,030.08

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Solution

The fourth proportional to 78,224.32, 108,038.67 and 53,030.08 is: 73,241.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,224.32 : 108,038.67 = 53,030.08 : x
  2. Step 2: Convert to fraction form
    78,224.32/108,038.67 = 53,030.08/x
  3. Step 3: Cross multiply
    78,224.32x = 108,038.67 × 53,030.08
  4. Step 4: Simplify right side
    78,224.32x = 5,729,299,313.19
  5. Step 5: Solve for x
    x = 5,729,299,313.19/78,224.32
  6. Step 6: Final answer
    x = 73,241.92

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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.