Home / 91,368.84-126,127.78-55,570.28

Finding the Fourth Proportional to 91,368.84, 126,127.78 and 55,570.28

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Solution

The fourth proportional to 91,368.84, 126,127.78 and 55,570.28 is: 76,710.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,368.84 : 126,127.78 = 55,570.28 : x
  2. Step 2: Convert to fraction form
    91,368.84/126,127.78 = 55,570.28/x
  3. Step 3: Cross multiply
    91,368.84x = 126,127.78 × 55,570.28
  4. Step 4: Simplify right side
    91,368.84x = 7,008,956,050.38
  5. Step 5: Solve for x
    x = 7,008,956,050.38/91,368.84
  6. Step 6: Final answer
    x = 76,710.57

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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.