Home / 78,347.16-108,119.08-42,537.18

Finding the Fourth Proportional to 78,347.16, 108,119.08 and 42,537.18

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Solution

The fourth proportional to 78,347.16, 108,119.08 and 42,537.18 is: 58,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,347.16 : 108,119.08 = 42,537.18 : x
  2. Step 2: Convert to fraction form
    78,347.16/108,119.08 = 42,537.18/x
  3. Step 3: Cross multiply
    78,347.16x = 108,119.08 × 42,537.18
  4. Step 4: Simplify right side
    78,347.16x = 4,599,080,617.84
  5. Step 5: Solve for x
    x = 4,599,080,617.84/78,347.16
  6. Step 6: Final answer
    x = 58,701.30

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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.