Home / 80,838.81-111,547.53-45,026.28

Finding the Fourth Proportional to 80,838.81, 111,547.53 and 45,026.28

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Solution

The fourth proportional to 80,838.81, 111,547.53 and 45,026.28 is: 62,130.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,838.81 : 111,547.53 = 45,026.28 : x
  2. Step 2: Convert to fraction form
    80,838.81/111,547.53 = 45,026.28/x
  3. Step 3: Cross multiply
    80,838.81x = 111,547.53 × 45,026.28
  4. Step 4: Simplify right side
    80,838.81x = 5,022,570,319.09
  5. Step 5: Solve for x
    x = 5,022,570,319.09/80,838.81
  6. Step 6: Final answer
    x = 62,130.68

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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.