Home / 52,030.32-78,045.56-12,587.28

Finding the Fourth Proportional to 52,030.32, 78,045.56 and 12,587.28

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Solution

The fourth proportional to 52,030.32, 78,045.56 and 12,587.28 is: 18,880.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,030.32 : 78,045.56 = 12,587.28 : x
  2. Step 2: Convert to fraction form
    52,030.32/78,045.56 = 12,587.28/x
  3. Step 3: Cross multiply
    52,030.32x = 78,045.56 × 12,587.28
  4. Step 4: Simplify right side
    52,030.32x = 982,381,316.48
  5. Step 5: Solve for x
    x = 982,381,316.48/52,030.32
  6. Step 6: Final answer
    x = 18,880.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.