Home / 70,715.55-97,587.81-38,886.51

Finding the Fourth Proportional to 70,715.55, 97,587.81 and 38,886.51

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Solution

The fourth proportional to 70,715.55, 97,587.81 and 38,886.51 is: 53,663.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,715.55 : 97,587.81 = 38,886.51 : x
  2. Step 2: Convert to fraction form
    70,715.55/97,587.81 = 38,886.51/x
  3. Step 3: Cross multiply
    70,715.55x = 97,587.81 × 38,886.51
  4. Step 4: Simplify right side
    70,715.55x = 3,794,849,349.44
  5. Step 5: Solve for x
    x = 3,794,849,349.44/70,715.55
  6. Step 6: Final answer
    x = 53,663.58

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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.